Losing Their Cool: Joe, Serena and Kanye

In the hallowed venue of a joint session of Congress, Republican Congressman Joe Wilson yelled, "You lie" at President Obama. At the highly competitive US Open, tennis star Serena Williams threatened an official who said she stepped over a line. And, last night, hip-hopper Kanye West interrupted Taylor Swift's acceptance speech to say Beyonce should have won the MTV Award for best video. Nancy Snow is Professor of Public Diplomacy at Syracuse University's Newhouse School of Public Communications.