A roundup of key developments and the latest in-depth coverage of Russia's invasion of Ukraine.

The debate over stricter gun control laws intensifies as details emerge from the Robb Elementary School shooting in Uvalde, Texas.

"It'd be great if you had some help — but I can assure you those kids need help more than you need help," says Steve Ijames, who trains police agencies on active-shooter situations.

Colombia's presidential election is Sunday, and for the first time, a leftist candidate is favored to come out ahead. Business elites are nervous.