John Carlin, a national security official during the Obama administration, says Russian President Vladimir Putin is personally aware of cyber hacking in the U.S, as he tells Lesley Stahl. The director of the Center for Disease Dynamics, Economics and Policy says the overuse of antibiotics has led to antibiotic-resistant bacteria. Holly Williams reports. Plus -- Anderson Cooper takes a trip to Easter Island on this Easter Sunday. Those stories on this week's "60 Minutes."
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