The Bulletin

• South Korea's political crisis: South Korea's Han Duck-soo has been reinstated as the nation's acting president with immediate effect after a constitutional court dismissed his impeachment on Monday. Get more details.

• Canada's travel advice for the US: Canada updated its travel advisory for citizens visiting the United States, citing changes in U.S. immigration policy and enforcement under President Trump. Here's what to know.

• HIMARS strike destroys Russian helicopters: Ukraine "destroyed" four Russian helicopters across the border in Russia's Belgorod region using missiles fired by U.S.-provided High Mobility Artillery Rocket Systems (HIMARS), Kyiv's special forces said on Monday.

• Video of Elon Musk goes viral: An unverified video of Elon Musk creating a strange structure during a White House dinner has gone viral online. Watch it here.

• China's influence concerns Florida: China's rising influence in the Caribbean and Latin America in recent years has raised concerns about its potential political and economic impact on Florida. Here's why.

• Green card holder detained by ICE: Lewelyn Dixon, a green card holder who immigrated to the United States from the Philippines five decades ago, is being detained by U.S. Immigration and Customs Enforcement in Washington state. Find out more.

• Oldest US aircraft carrier fills power gap: The United States has sent its oldest aircraft carrier, USS Nimitz, for a Western Pacific Ocean mission to fill the power gap left by its sister ship, which is heading to the Middle East. Know more.

The rundown: The Social Security Administration (SSA) has reneged on a previous promise to stop harsh penalties for seniors who have been overpaid benefits, which could mean some seniors will have to "pay for the government's mistakes." Learn more.

Why it matters: Benefit overpayments result from the government's mistake or from beneficiaries failing to comply with requirements, intentionally or otherwise. SSA overpayments made headlines in 2024 when several beneficiaries spoke about their experiences. One woman told Newsweek she was hit with a $62,000 bill for overpayments relating to Social Security survivor payments she received after her father died while she was a child. The agency has said overpayments typically occur for two reasons: beneficiaries fail to update their earnings information or report other changes, or Social Security employees do not update beneficiaries' records promptly.

Read more in-depth coverage:
Social Security Unveils Major Cost Saving Plan

TL/DR: "We have the significant responsibility to be good stewards of the trust funds for the American people," said Lee Dudek, acting commissioner of Social Security.

What happens now? On March 7, the federal agency announced it would reinstate the 100 percent withholding rate. This means that any overpayment made by the SSA would see the recipient's benefits withheld to pay off the balance. The new withholding rate will apply to any overpayment made after March 27, and previous incorrect payments will not be impacted.

Deeper reading Social Security Overpayments: Seniors Will 'Pay for Government's Mistakes'

The rundown: Canadian Prime Minister Mark Carney has called a snap election for late April, setting up a contest with Conservative leader Pierre Poilievre in a race that polls now show mainly favoring the Liberal Party—a flip from last month's polling numbers. Find out what it reveals.

Why it matters: Carney does not currently hold a seat in Parliament, but recently succeeded Justin Trudeau as prime minister. With the general election just over a month away, polls show the race essentially neck-and-neck. As of Sunday, polling aggregator 338Canada had the Liberal Party at 39 percent, the Conservative Party at 37 percent, and New Democratic Party at 11 percent. The Liberal Party's lead falls within the margin of error, which is plus or minus 4 percentage points. A CityNews-Léger poll of 1,504 Canadians conducted from March 10 to 13 found the Liberal Party at 40 percent to the Conservative Party's 37 percent.

Read more in-depth coverage:
Mark Carney Sends Message to Donald Trump as Canada Seeks 'Reliable Partners'

TL/DR: The election comes as the friendly rapport between Canada and the United States has soured, with tensions elevated in recent weeks following Trump's tariff agenda and repeated remarks about making Canada the 51st state.

What happens now? The snap election is set for 36 days from now—just 26 days after the United States is set to impose new tariffs on Canada.

Deeper reading Mark Carney's Chances of Beating Pierre Poilievre in Canada Election—Polls

The rundown: In the wake of the boom of artificial intelligence (AI), more healthcare insurance companies are using the technology to speed up the process of evaluating patient medical claims, making it quite likely AI played a hand in determining the outcome of your payout. Here's how.

Why it matters: University of Pennsylvania Professor Hamsa Bastani explained to Newsweek how AI can streamline the medical claims process. Bastani noted that "when a claim comes in, an algorithm can review details like medical codes, patient history, and patterns of past claims, to see whether the claim is valid, consistent with policy coverage." She said that the payout "may be automated if the claim looks normal," otherwise, it may get passed on for manual review by a human. AI, when working accurately, can find quicker resolutions to claims, while also having huge cost-saving impacts for health insurance companies, according to a report by law firm McKinsey & Company.

Read more in-depth coverage:
Over 5 Million People Could Lose Medicaid Coverage If Requirements Change

TL/DR: Controlling the use of AI in the healthcare industry has been on the legislative agenda in a number of states in recent months, as critics argue that the technology increases inaccuracies and bias in medical decision-making, warning that patient health care is not being fairly reviewed.

What happens now? A number of states are continuing to push for AI to have tighter controls when used in the healthcare industry. Earlier this month, Texas Representative David Spiller introduced a bill that would prohibit health insurance companies from using AI to delay, deny, or modify claims, legislation similar to what other states have brought forward.

Deeper reading Will Your Health Insurance Pay Out? AI Will Decide

The rundown: President Donald Trump's efforts to engage with Iran on a possible nuclear agreement reflect an attempt to avoid conflict, according to U.S. Special Envoy Steve Witkoff. Learn more.

Why it matters: Speaking to Fox News on Sunday, Witkoff said that Washington prefers a diplomatic resolution over military confrontation. He said that diplomacy remains the best path forward but warned that failure to reach an agreement could lead to a more dangerous alternative. Separately on Sunday, White House National Security Adviser Mike Waltz took a more hardline position towards Tehran. Speaking on CBS News, Watlz reinforced Washington's demand for Iran to fully dismantle its nuclear program. Iran's Supreme Leader Ayatollah Ali Khamenei, dismissed the U.S. offer, calling it "a deception" aimed at further tightening sanctions. Iran has long argued that Washington's negotiations come with strings attached, designed to weaken Tehran rather than offer a fair agreement.

Read more in-depth coverage:
Iran's Supreme Leader Threatens US with 'Severe Blow'

TL/DR: Tensions between Washington and Tehran have remained high since Trump reinstated harsh sanctions aimed at crippling Iran's economy.

What happens now? Despite keeping the door open for negotiations, Trump has reintroduced his "maximum pressure" strategy, aiming to curtail Iran's oil exports. Since returning to office, his administration has imposed four rounds of sanctions targeting Tehran's energy sector.

Deeper reading US Threatens 'All Options on the Table' for Iran

The rundown: Postal workers across the country rallied against the dismantling of the United States Postal Service on Sunday. Here's what to know.

Why it matters: It was reported in February that President Donald Trump was considering plans to transfer the USPS to the Commerce Department. Trump and his allies have also indicated they are willing to privatize the service. Hundreds of postal workers gathered to protest in Chicago, Boston, Los Angeles, Nashville, Houston, Washington, D.C., and other cities on Sunday, according to reports and social-media posts. In Chicago, workers wearing red shirts saying "Fight Like Hell" packed Federal Plaza to "send a clear message to Trump & Musk" on Sunday, according to a post on X, from the Chicago Federation of Labor. Representative Maxine Waters and Senators Dick Durbin and Tina Smith were among lawmakers who joined protests on Sunday in support of the postal workers.

Read more in-depth coverage:
US Postal Service Plans to Cut 10,000 Jobs: What to Know

TL/DR: The National Association of Letter Carriers (NALC) planned rallies in more than 200 cities to warn that any effort to privatize or restructure the agency would be a threat to jobs and the service Americans rely on.

What happens now? DeJoy told Congress that 10,000 jobs would be eliminated by mid-April. His letter did not provide details or a timeline about when DOGE would begin working with USPS. An effort to merge the USPS into the Department of Commerce may not be possible without an act of Congress.

Deeper reading Protests Break Out Across US Over Plans to Change Postal Service