Countries around the world are working to ensure tensions between Israel and Iran do not escalate further after the two nations exchanged targeted attacks. Sam Vinograd, a CBS News homeland security contributor and former counterterrorism official, and Eric Lob, an associate professor of politics and international relations at Florida International University, have more on the global repercussions.
The Columbine High School mass shooting in Littleton, Colorado, left behind many survivors and families who are still dealing with the massacre's trauma. Zach Cartaya, a Columbine student and co-founder of The Rebels Project, joins CBS News with more on his mission to help other victims of violence.