60 Mins to Obama: "Are You Punch Drunk?"

The president tells CBS' Kroft Americans shouldn't perceive his laughing, jokes about money that he's taking the economic crisis lightly. “No, no. There's gotta be a little gallows humor to get you through the day." Plus: Obama says the U.S. must have an "exit strategy" in Afghanistan, even as Washington sends more troops to fight Taliban militants. Click above to watch. More excerpts here.