Charles Pena is a senior fellow with the Independent Institute, the Coalition for a Realistic Foreign Policy, and the George Washington University Homeland Security Policy Institute. He is also an adviser on the Straus Military Reform Project, and the former director of defense policy studies at the Cato Institute. In addition to regular appearances as a terrorism analyst on MSNBC, he has appeared on "Hardball with Chris Matthews", NPR's "Morning Edition", CNN's "Newsnight with Aaron Brown", "NBC Nightly News", and "The McLaughlin Group". Pena is the coauthor of "Exiting Iraq: Why the U.S. Mus...