Credit: Jason E. Miczek / AP Images for Jeremiah Weed

American democracy. Where the people tell the politicians what to do… right? It turns out, politicians actually influence voters more than you think.

Then: We know more about the brain than ever before. Law professor Francis Shen talks about how what we've learned is playing out in our legal system.

Finally: That sugar-filled doughnut might bring you pleasure, but it probably doesn’t make you happy. Pediatrician Robert Lustig says, yes, there’s a difference between the two, and Americans are focusing too much on pleasure.