Lessons from Keurig and Google.

In 1991, Shaka Senghor shot and killed a man. He was, he says, "a drug dealer with a quick temper and a semi-automatic pistol." Jailed for second degree murder, that could very well have been the end of the story. But it wasn't. Instead, it was the beginning of a years-long journey to redemption, one with humbling and sobering lessons for us all.

Brazil may have missed its golden opportunity, but it could still make a big difference in its citizens' lives.

A Q&A with psychologist Gerd Gigerenzer.