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The Latest: Massachusetts man freed from Iran returns home

Race tightens: Clinton, Sanders clash on guns, health care CHARLESTON, S.C. (AP) — Turning up the temperature, Hillary Clinton and Bernie Sanders tangled repeatedly in Sunday night's presidential debate over who's tougher on gun control and Wall Street and how to steer the future of health care in America. It was the last Democratic matchup before voting begins in two weeks, and both sides were eager to rumble as polls showed the race tightening in the leadoff states of Iowa and New Hampshire. Clinton rapped Sanders, the Vermont senator, for voting repeatedly with the National Rifle Association, and then welcomed his weekend reversal of position to support legislation that would deny gun manufacturers legal immunity. She rattled off a list of provisions that she said Sanders had supported in line with the NRA. Sanders, in turn, said Clinton's assertion that he kowtowed to the gun lobby was "very disingenuous" and pointed to his lifetime rating of a D- from the NRA. On health care, Sanders released his plan for a government-run single-payer plan just hours before the debate, and used his opening statement to call for health care "for every man, woman and child as a right." Clinton, by contrast, urged less sweeping action to build on President Barack Obama's health care plan by reducing out-of-pocket costs and control spending on prescription drugs. Clinton suggested Sanders' approach was dangerous — and pie-in-the-sky unrealistic. ___ AP FACT CHECK: Democratic debaters and the facts WASHINGTON (AP) — Bernie Sanders airbrushed the complexities of trying to overhaul health care all over again and Hillary Clinton offered a selective reading of her rival's record on gun control in the latest Democratic presidential debate. A look at some of their claims and how they compare with the facts: CLINTON on Sanders' proposal for a taxpayer-paid health care system: "I don't want to see us start over again with a contentious debate." SANDERS: "We're not going to tear up the Affordable Care Act," but build on it. THE FACTS: As Clinton suggests, Sanders' plan would indeed mean a radical change in direction — one that makes the government the payer of health care for everyone, not just for the elderly or the poorest Americans or members of the military. ___ 10 Things to Know for Monday Your daily look at late-breaking news, upcoming events and the stories that will be talked about Monday: 1. "SEVERAL" AMERICANS MISSING IN IRAQ Iraqi media say three Americans went missing on their way to Baghdad International Airport, but the U.S. Embassy did not identify them or say what they were doing in Iraq. 2. US-IRAN TIES WARM OVER NUCLEAR DEAL Relations took a huge step forward after the release of four Americans and the end of sanctions for Iran. ___ Triumph or travesty, US-Iran ties warming over nuclear deal WASHINGTON (AP) — Diplomatic triumph or travesty, America's relationship with one of its most intractable foes took two giant leaps forward this weekend when Iran released four Americans in a prisoner swap after locking in last summer's nuclear deal and receiving some $100 billion in sanctions relief. The announcements culminated a stunning few days of activity for the Obama administration and particularly Secretary of State John Kerry, who led the diplomatic outreach to Tehran at President Barack Obama's direction through years of slow-grinding negotiations. Speaking from the White House, Obama on Sunday hailed the "historic progress through diplomacy," long the centerpiece of his foreign policy vision, instead of another war in the Middle East. Three of the American detainees — Washington Post reporter Jason Rezaian, former U.S. Marine Amir Hekmati and pastor Saeed Abedini — arrived in Germany en route to a U.S. military hospital. They will return home after medical evaluations. The fourth, Nosratollah Khosravi-Roodsari, opted to remain in Iran, officials said. ___ Seoul: North Korea has sent 1 million propaganda leaflets SEOUL, South Korea (AP) — North Korea has launched an estimated 1 million propaganda leaflets by balloon into South Korea amid increased tension between the rivals following the North's recent nuclear test, Seoul officials said Monday. A Cold War-style standoff flared since the North's claim on Jan. 6 that it had tested a hydrogen bomb. South Korea resumed blasting anti-Pyongyang propaganda broadcasts and K-pop songs from border loudspeakers. North Korea quickly responded by restarting its own border broadcasts and floating the balloons over the border carrying anti-South leaflets, according to Seoul officials. Seoul's Defense Ministry said Monday the North's military has been sending the balloons on a near-daily basis. Spokesman Kim Min-seok said the leaflets have reached Seoul in addition to areas close to the border. Such leafleting by the North is rare, as the two Koreas officially stopped psychological warfare as part of tension-reduction measures in 2004. South Korean activists have still occasionally sent propaganda balloons toward the North, triggering angry responses from the North. South Korean officials believe their broadcasts will sting in the rigidly controlled, authoritarian country by demoralizing frontline troops and residents. There are doubts in Seoul that the North Korean leaflets will have any impact on the public in more affluent South Korea. ___ Burkina Faso begins 3 days of mourning after al-Qaida attack OUAGADOUGOU, Burkina Faso (AP) — Burkina Faso began three days of national mourning Sunday and the president said security would be stepped up in the capital and the country's borders after al-Qaida militants killed at least 28 people in an attack on a hotel and cafe popular with foreigners. In a message to the nation, President Roch Marc Christian Kabore said the people of Burkina Faso must unite in the fight against terrorism. He also announced on the national broadcaster, Burkina 24, that security forces would be stepping up their efforts to thwart future attacks and asked people to comply with the new restrictions. "These truly barbaric criminal acts carried out against innocent people, claimed by the criminal organization al-Qaida in the Islamic Maghreb (AQIM) seek to destabilize our country and its republican institutions, and to undermine efforts to build a democratic, quiet and prosperous nation," said Kabore. The national mourning began Sunday, a day after Burkinabe and French forces ended a more than 12-hour siege at the upscale Splendid Hotel in downtown Ouagadougou. When the gunfire and explosions finally stopped, authorities said 18 were killed in the hotel and 10 were killed at the nearby Cappuccino Cafe. Among the victims was a Ukrainian woman who was co-owner of the cafe with her Italian husband, Gaetano Santomenna, according to Ukrainian officials. Although Santomenna was not at the cafe and survived the attack, the couple's son, Michel Santomenna, 9, was killed, according to the Italian foreign ministry. Italy's foreign minister, Paolo Gentiloni, called the child's death "a horrendous crime," in a tweet which also expressed sympathy with the boy's father. ___ US Embassy says several Americans missing in Iraq BAGHDAD (AP) — The U.S. Embassy confirmed Sunday that "several" Americans have gone missing in Iraq, after local media reported that three Americans had been kidnapped in the Iraqi capital. U.S. Embassy spokesman Scott Bolz said, "We are working in full cooperation with Iraqi authorities to locate the missing Americans." Bolz did not identify the missing Americans or say what they were doing in Iraq. State Department spokesman John Kirby said that "due to privacy considerations" he had nothing further to add about the missing Americans. "The safety and security of Americans abroad is our highest priority," Kirby said. The comments by U.S. officials came after the Arab news channel, al-Arabiya, citing its own sources, reported that three Americans had been kidnapped by militias in Baghdad. ___ Search for 12 Marines from downed helicopters enters 3rd day HONOLULU (AP) — The ongoing search for 12 Marines who are missing after two helicopters crashed off Hawaii entered the third day with no plans Sunday to call off or suspend the massive effort, the Coast Guard said. While high surf complicated the mission for rescuers on the water, a green laser off Haleiwa Beach Park on Saturday night struck a Coast Guard plane, forcing crew members to alter search patterns. "It's a very, very dangerous thing," Coast Guard spokeswoman Tara Molle said of the laser, adding that it can be life-threatening for crews flying at night. The crew of the HC-130 plane wasn't exposed and didn't have to land, but they changed their search pattern to avoid being hit again. The Coast Guard reminded the public that targeting a laser at an aircraft is illegal and could result in fine of $11,000 per violation. ___ List of Winners for the Critics' Choice Awards LOS ANGELES (AP) — List of winners of the 21st annual Critics' Choice Awards, announced Sunday in Santa Monica, California. MOTION PICTURE WINNERS: Best Picture: "Spotlight." Best Actor: Leonardo DiCaprio, "The Revenant." Best Actress: Brie Larson, "Room." ___ Manning leads Broncos past Steelers 23-16 DENVER (AP) — Peyton Manning gets to face his biggest nemesis for one more shot at glory. Get ready for Brady-Manning XVII. The NFL's only five-time MVP earned one more and possibly final game against his rival by leading the Denver Broncos to a come-from-behind 23-16 win over Ben Roethlisberger and the Pittsburgh Steelers on a blustery Sunday. That set up an AFC championship game next weekend in Denver against Tom Brady and the New England Patriots. What a fitting feature to an 18th season for Manning that's been equal parts trying and triumphant, filled with injuries and insults, rehab and redemption.

AP News in Brief at 12:04 a.m. EST