Buy American; Whistle Blower; Taliban Power

Lesley Stahl examines the new "Buy American" clause pushed for public works funded by the stimulus money. Dan DiMicco, CEO of the nation's largest steelmaker thinks it's a great idea. The head of Caterpillar, on the other hand, believes retaliation by other countries could spur them to push their own "Buy Europe" or "Buy China" clauses and end up hurting the American economy even more.