A Harvard scientist says the drugs used to treat depression are effective, but for many, it’s not the active ingredient that’s making people feel better. It’s the placebo effect.
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Over the past decade, followers of the mysterious Turkish cleric Fethullah Gulen have opened scores of charter schools in the U.S., inspired by a man who is as powerful as he is reclusive. Lesley Stahl reports.
Crooked lobbyist Jack Abramoff explains how he asserted his influence in Congress for years, and how such corruption continues today. Lesley Stahl reports.