One could argue that "expert" has become a bad word. People routinely roll their eyes at the advice of experts and sometimes mock them. Perhaps nowhere is this more clear than the Federal Reserve. In the 90s, Alan Greenspan was lauded as the author of the great economy. Today, the Fed is a political punching back. On this week's Odd Lots podcast, Joe Weisenthal and Tracy Alloway talk to Sebastian Mallaby about Greenspan, experts and the huge changes at the Fed in the last couple of decades.