During his State of the Union address, President Trump claimed Iran is working to build nuclear weapons that could threaten the U.S. Iran's foreign ministry disputes the claim. The U.S. is continuing to add to its military buildup in the region, ahead of negotiations on Thursday. Charlie D'Agata reports.
Punch the monkey went viral after an interaction with his mother stole the hearts of many. Brogan Stewart, a Concordia University doctoral candidate in environmental science who studies animal behavior, joins CBS News with her analysis.
Maryland Rep. Glenn Ivey was one of the Democratic lawmakers who skipped President Trump's State of the Union address. Ivey joined CBS News with his reaction to Mr. Trump's remarks.
