• The US Transportation Secretary said Newark Airport could see reduced flights in the coming weeks.
• Sean Duffy told NBC's "Meet the Press" that the focus was on safety.
• Newark has faced a number of air traffic control equipment outages in recent weeks.

US Transportation Secretary Sean Duffy said he plans to reduce the number of flights at Newark Liberty International Airport over the "next several weeks."

Duffy spoke to NBC News' "Meet the Press" Sunday morning, as another air traffic control outage again grounded flights at the airport. Operations have since returned to normal, the Federal Aviation Administration said.

"I hate delays, I hate cancellations," Duffy said. "But I want you to get where you're traveling. And if that means slowing down flights into Newark, we slow them down to make sure we can do it safely."

In recent months, Newark has experienced a series of air traffic control equipment outages, which have raised concerns among travellers.

"There was a telecommunications issue at Philadelphia TRACON Area C, which guides aircraft in and out of Newark Liberty International Airport airspace," the FAA said in a statement about the outage on Sunday. "The FAA briefly slowed aircraft in and out of the airport while we ensured redundancies were working as designed. Operations have returned to normal."

Communications and radar displays at the airport suffered another outage on Friday, too, lasting about 90 seconds.

Duffy said in the interview on Sunday that he is "concerned about the whole airspace" in the United States because equipment used by most airports is now outdated.

"The equipment that we use, much of it we can't buy parts for new," Duffy said. "We have to go on eBay and buy parts if one part goes down. You're dealing with really old equipment. We're dealing with copper wires, not fiber, not high-speed fiber, and so this is concerning."

In addition to equipment problems, there is also an ongoing shortage of air traffic controllers. In 2023, a report from the Department of Transportation found that the FAA still faced staffing challenges after the pandemic forced a pause on training. The report said the FAA "lacks a plan to address" the staffing issues, which "in turn poses a risk to the continuity of air traffic operations."

Air traffic controllers also have specific age requirements, which makes hiring more difficult. The FAA requires air traffic controllers to retire when they turn 56, and the agency is now only accepting applications from people under the age of 31.

Duffy told NBC he planned to address the shortage of air traffic controllers by extending the retirement age from 56 to 61 and by offering bonuses to incentivize them to stay in the job.

"I'm going to give them a 20% upfront bonus to stay on the job," Duffy said. "Don't retire. Keep serving your country."

• Warren Buffett announced he is stepping down as Berkshire Hathaway's CEO at the end of the year.
• He has recommended that Greg Abel, a vice chair at the company, succeed him.
• Tributes have been pouring in from business leaders such as Bill Gates, Mark Cuban, and Tim Cook.

Warren Buffett said he would step down as Berkshire Hathaway's CEO after 55 years, eliciting tributes from investors and business leaders.

Buffett, 94, made the announcement on Saturday during the company's annual shareholder meeting in Omaha, Nebraska. The crowd gave Buffett two standing ovations, acknowledging his career as the longest-serving chief executive of an S&P 500 company.

He said he intended to step down at the end of 2025 and recommended to the board of directors that Greg Abel, now a vice chair at the company, take over as CEO.

Buffett has remained an enduring force as an investor and businessman since purchasing Berkshire Hathaway in 1965, then a New England textile mill, and transforming it into a $1 trillion conglomerate that spans multiple industries.

Following Buffett's announcement, business leaders from across the globe shared tributes.

Bill Gates

In a statement to Business Insider, Microsoft cofounder Bill Gates called Buffett "one of the greatest CEOs ever" and "hands-down the most successful investor of all time."

Buffett and Gates have been friends for 30 years, meeting in the 1990s. They have worked together on philanthropic efforts for decades, though their friendship has cooled in recent years.

"He has built an extraordinary company in Berkshire Hathaway, and he's done it with wisdom, integrity, and a phenomenal sense of humor. But Warren hasn't been satisfied with setting an example as a businessman. When he decided to give his wealth back to society, he set an example as a philanthropist, too. His legacy will inspire generations to come," Gates said.

Tim Cook

The Apple CEO praised Buffett in an X post on Saturday.

"There's never been someone like Warren," Cook wrote. "It's been one of the great privileges of my life to know him. And there's no question that Warren is leaving Berkshire in great hands with Greg."

Jamie Dimon

Dimon, the chief executive of JPMorgan Chase and a fixture of Wall Street, praised Buffett in a message after the investor's big announcement.

"Warren Buffett represents everything that is good about American capitalism and America itself — investing in the growth of our nation and its businesses with integrity, optimism, and common sense," he said, per Reuters. "I've learned so much from him to this very day, and I am honored to call him a friend."

Brian Moynihan

Bank of America Chair and CEO Brian Moynihan told Business Insider that Buffett "has achieved unparalleled success over a seven-decade-plus career."

Bank of America was one of Berkshire Hathaway's largest holdings before it began to sell shares last year.

"Beyond his business success, his unprecedented philanthropic giving continues to be an example to follow," Moynihan told BI over email. "His life lessons delivered to young and old are as valuable as his business acumen. I have personally learned so much from him and look forward to continuing to benefit from his insights. He has been a tremendous supporter and investor in Bank of America and our nation's economy and the innovative spirit of the United States."

Bill Ackman

Bill Ackman, the billionaire CEO of Pershing Square Capital Management, said on Monday he "wouldn't bet against Berkshire."

"I think they will be a little bit more aggressive about buying back stock. I don't see Berkshire waking up in six months and Berkshire announcing $100 billion acquisition," Ackman told CNBC's "Squawk Box."

The billionaire hedge fund manager said that Buffett's replacement, Greg Abel, "is a superb operator" who nonetheless may be cautious early on.

"I think the new CEO will be and the new board, not the new board, the current new CEO and the current board will be a little bit more careful on the first deals because if Berkshire's first deal turns out not to be a good one, you know, I think that the market will kind of frown upon that," Ackman said. "But I think the business will do very well."

Bill Gross

Billionaire investor and PIMCO cofounder Bill Gross told Business Insider via email that Buffett's vision set him apart from other investors.

"His vision was not limited to an optimistic vision of the future," Gross told BI. "Through his insurance holdings that by their structure allowed for the investment of premiums at a near zero cost into higher returning assets such as Coke, AMEX and Apple and in so doing he created a spread which over time led to billions and the recognition not just as a stock picker but as a financial structural wizard."

Gross also congratulated Buffett and recalled on X the first time his firm gave Berkshire one of its first loans in the mid '70s.

"I knew nothing about insurance and candy stores but was sold by his long-term vision of the economy and markets," Gross wrote. "Congratulations my friend — not just on the numbers — but on the philanthropy and the years. Having a cherry Coke with you was a highlight of my career."

Mark Cuban

Cuban told Business Insider in an email that Buffett was his "investing hero" and shared a photo of him with the investing legend at a Dairy Queen in Omaha.

"We used to go to DQ in Omaha," Cuban wrote. "It was the highlight of my year."

Following the announcement, Cuban also reposted on X a video showing Buffett receiving a standing ovation during the annual Berkshire Hathaway meeting.

Spencer Hakimian

Hakimian, the founder of Tolou Capital Management, shared a video on X of Buffett receiving a standing ovation from the crowd at Berkshire Hathaway's annual meeting.

"Curtain call for the captain," Hakimian wrote.

Ron Olson

Olson, a Berkshire Hathaway board member, told CNBC that Buffett has "lived a life full of surprises. Very few of his decisions have been anything but sensational. I am very anxious to see Warren become the Charlie Munger for Greg Abel."

Olson also believed Abel "is ready" for the role.

"I have no doubt about that. We've known it for a long time," Olson told the outlet.

French Hill

The Arkansas GOP congressman and former businessman told CNBC that Buffett, Abel, and Berkshire Hathaway's board "have done a magnificent job over the last decade preparing shareholders for today."

Hill added that he's admired Buffett since his college days.

"When I got out of government in 1993 and went back to the private sector in investment management, it was Warren Buffett who was my role model — a man I've never personally met, but I've admired all these years," Hill told the outlet.

Stephen Squeri

The chairman and CEO of American Express told Business Insider via email that Buffett "has had one of the most storied careers in the history of American business."

Squeri added that Buffett's "vision and deep sense of responsibility to shareholders is unmatched, and his humility and humor are rare qualities in a leader that have made working with Warren a delight."

He added that American Express, in which Berkshire Hathaway holds a minority stake, looks forward to "continuing to work with Greg as he builds upon Warren's legacy."

Seth Klarman

The CEO of the Baupost Group hedge fund told BI over email that Buffett ran an "investment marathon" for decades and excelled in all conditions.

"But he is more than an investor — he is a visionary business leader, teacher, role model, and philanthropist. I've always seen him as a mentor, and I suspect he'll keep contributing in all of these spheres far into the future. There will be no other like him!"

Howard Marks

The co-chairman of Oaktree Capital Management told BI in an email that it is "impossible" for anyone to measure up to Buffett.

"He is the single most influential investor of all time — the Isaac Newton of investing," Marks said.

"He says when he started in the early 1950s, he was able to buy dollars for 50 cents — and he makes it sound easy," Marks added. "But the thing is, even if the opportunities were there, nobody else did it. There weren't multiple Warren Buffetts."

Jim Cramer

Jim Cramer, the host of the CNBC show "Mad Money," called Buffett "our only G.O.A.T." in an X post on Sunday.

"In awe of Buffett and congratulate him on the greatest run of all time," Cramer wrote.

• A woman was charged with animal cruelty after her dog was found dead at Orlando airport in December.
• An affidavit said she was denied boarding due to improper paperwork for the dog.
• It said she boarded a flight to Colombia without reporting the dog's disappearance to authorities.

A Florida woman is facing aggravated animal cruelty charges after her dog was found dead in a trash can at Orlando International Airport in December.

The State of Florida is prosecuting Alison Lawrence, 57, in a criminal case filed in the Ninth Judicial Circuit Court.

An arrest warrant affidavit dated March 17, seen by Business Insider, said that Lawrence was denied boarding with her white miniature schnauzer, Tywinn, due to improper paperwork.

She was traveling on December 16 to Colombia, and health certificates and vaccinations are needed for pets.

After being denied boarding, it is claimed that Lawrence killed the dog inside a women's restroom near the West Jet ticket counter.

US Customs and Border Protection confirmed that Lawrence proceeded to board her flight to Bogotá.

The defendant had connecting flights to Quito and Cuenca, Ecuador, with no return flight to the US booked.

She did not report the loss or disappearance of Tywinn to airport authorities at any time.

Investigators also found no evidence that Lawrence had attempted to arrange alternative accommodations for the dog.

A cleaner found the dog's body inside a plastic bag in a bathroom trash can.

Blood was found on the dog's left leg, and the body was still warm and wet upon examination.

A necropsy determined that the dog died from drowning, and a forensic review of the restroom revealed the presence of water residue consistent with forced submersion.

The toxicology report found no pre-existing medical conditions that could have contributed to the animal's death.

According to the affidavit, surveillance video showed the dog entering the restroom with Lawrence, and the evidence aligned with an intentional killing of the dog rather than an accidental death.

A Florida driver database search revealed the defendant had used three last names: Lawrence, Holt, and Lichter.

Phone records linked the number on the dog tag to Alison Holt, associated with the same address in Clermont, Florida.

An arrest warrant was issued based on the overwhelming evidence supporting a felony animal cruelty charge. Lawrence was arrested on Wednesday and is understood to have been released on bail.

Lawrence could not immediately be reached for comment. A spokesperson for the Orlando International Airport told BI that the Orlando Police Department is actively investigating the case and declined to comment further.

The airport recommends that passengers flying with small animals check the TSA website for information on how to travel with them safely, the spokesperson said.

• Trump signed an executive order to implement tariffs on Mexico, Canada, and China.
• He has been threatening the tariffs on the three countries and others for months.
• Canada and Mexico have vowed to impose retaliatory tariffs against the US.

Canada and Mexico have hit straight back at President Donald Trump's latest tariffs, vowing to impose retaliatory levies on the US.

Canadian Prime Minister Justin Trudeau announced Saturday that Canada would impose 25% tariffs on C$155 billion (around $106 billion) of US goods, some of which will go into effect on Tuesday and others in three weeks' time.

Mexico's President, Claudia Sheinbaum, said in a post on X that she had also ordered retaliatory tariffs.

"I instruct the economy minister to implement Plan B that we have been working on, which includes tariff and non-tariff measures in defense of Mexico's interests," she wrote.

The Trump administration said Saturday it had imposed a 25% tariff on goods from Canada and Mexico and a 10% tariff on China. On Sunday, the president reacted to Canada's retaliation, saying it would "struggle to exist" without US subsidies.

"We pay hundreds of Billions of Dollars to SUBSIDIZE Canada. Why? There is no reason. We don't need anything they have," Trump wrote in a post on Truth Social.

China's Ministry of Commerce, meanwhile, accused the United States in a statement released Sunday of violating World Trade Organization rules with the tariff.

The ministry said China would file a lawsuit with the WTO against the United States and take "corresponding countermeasures to firmly safeguard its own rights and interests."

Economists expect many firms to pass increased costs caused by tariffs onto customers, and several companies have already said they are preparing to raise prices in response. Electronics, groceries, and apparel are among the most likely products to see price increases.

The White House said the tariffs will work to deliver Trump's campaign promises. Regarding his proposed first round of tariffs, an official told Business Insider that "Trump has been clear about his desire to end the fentanyl crisis, and it's time for Mexico and Canada to join the fight as well." Trump has said a tariff on China would also help fight the fentanyl problem.

Here are all the countries Trump has targeted with his trade proposals so far.

China

China was a key focus for tariffs on the campaign trail. While campaigning, Trump proposed a 60% tariff on all goods imported from China, alongside a 10% to 20% tariff on imports from other countries.

Once Trump took office, though, his ideas for tariffs on China appeared to narrow. On January 21, he suggested a 10% tariff on imports from China into the United States beginning on February 1 "based on the fact that they're sending fentanyl to Mexico and Canada."

The Trump administration cited the fentanyl crisis on Saturday as the impetus for the new tariffs.

China is a major electronics supplier to the United States, so cellphones, computers, and games could get more expensive.

Mao Ning, a spokesperson for China's Foreign Ministry, told reporters on January 22: "We believe that there's no winner in a trade or tariff war, and we will firmly uphold our national interests."

Canada and Mexico

The new tariffs make good on an earlier threat Trump posted in November on his social media platform, Truth Social. He indicated at the time that he would impose tariffs on those two countries on his first day in office if they didn't strengthen their border policies.

The US imports many key goods from both Mexico and Canada. Americans receive $92 billion in crude oil from Canada, as well as billions of dollars worth of vehicles and vehicle parts. In addition to car parts, Mexico also supplies $25 billion worth of computers to the United States.

Russia

Trump said on January 22 that he would place tariffs on imports from Russia if the country did not end the Ukraine war soon.

"If we don't make a 'deal,' and soon, I have no other choice but to put high levels of Taxes, Tariffs, and Sanctions on anything being sold by Russia to the United States, and various other participating countries," Trump wrote on Truth Social.

According to Census data, the US imported $4.57 billion worth of goods from Russia in 2023, which made up just 0.14% of total imports that year. Given how little the country exports to the United States, consumers would probably see few effects if a tariff on Russia was implemented.

Colombia

After Colombia's president turned away two flights from the US that carried deported migrants, Trump threatened the country with a 25% tariff. He said that in one week, the Colombia tariff would be raised to 50%.

"We will not allow the Colombian Government to violate its legal obligations with regard to the acceptance and return of the Criminals they forced into the United States!" Trump said on Truth Social.

Colombia's president Gustavo Petro responded in a statement that his country would receive Colombians "on civilian planes, without treating them like criminals." The White House then withdrew its threat but warned it could be reinstated if Colombia failed to honor its agreement.

Key goods the US imports from Colombia include coffee and bananas, which would likely get more expensive under tariffs.

BRICS nations

On November 30, Trump posted on Truth Social that he would impose a 100% tariff on the BRICS group unless they committed to not creating a separate currency that competes with the US dollar.

BRICS consists of nine countries: Brazil, Russia, India, China, South Africa, Ethiopia, Egypt, Iran, and the United Arab Emirates.

Pharmaceutical preparations, crude oil, and household goods are the top imports from countries in the BRICS group, excluding China. The Trump administration did not announce any tariffs on the BRICS nations on Saturday.

Denmark

Trump said during a press conference on January 7 that he would "tariff Denmark at a very high level" if the country didn't agree to cede control of Greenland, an autonomous Danish territory, to the United States.

The president has not offered further details on that claim, nor have any such tariffs been implemented. The Financial Times reported that Trump and Denmark's premier, Mette Frederiksen, had a call to discuss the threat, during which  Frederiksen reportedly emphasized that Greenland was not for sale.

The US primarily imports medicinal products and machinery from Denmark.