There were conflicting signals Monday from the U.S. and Iran over the status of negotiations to extend the ceasefire and begin talks on ending the war. Meantime, the ceasefire between Israel and Hezbollah has been all but shattered as Israel pressed deep into Lebanon. Ali Rogin reports.

Massive Russian attacks across Ukraine overnight killed at least 22 people nationwide and wounded more than 130. Russia has stepped up the size and pace of its attacks on Ukrainian cities in recent months, but on the battlefront, Ukraine is trying to turn the tide. Nick Shifrin reports on Ukraine's efforts, and speaks with retired U.S. Army Col. Robert Hamilton for more on the war.

Once a pastime viewed by some as old-fashioned, the game of mahjong is having a moment. In recent years, players of all ages have been strategizing and socializing at mahjong tables from coast to coast. Deema Zein reports on the tile game's resurgence.

It's the world's largest humanitarian crisis, yet aid groups say it has received far too little attention. As Sudan's civil war enters its fourth year, nearly two out of every five people face emergency-level hunger and humanitarian officials warn the crisis has been compounded by the closure of the Strait of Hormuz. Nick Schifrin reports. A warning, some images in this story are disturbing.

One year ago, a gunman approached an event for young diplomats at the Capital Jewish Museum in Washington, D.C., and killed two young employees of Israel's U.S. embassy. Yaron Lischinsky was 30 years old and Sarah Milrim was 26. They were about to become engaged. Yaron's father, Daniel Lischinsky, joined Nick Schifrin to discuss fighting antisemitism and preserving his son's legacy.