Dave Davies

Most Americans have a vague notion about the national debt, but how many of us really understand the repercussions of a $9 trillion debt? In their new book, Where Does the Money Go?, authors Scott Bittle and Jean Johnson examine the way a looming federal budget crisis threatens to affect personal savings, retirement and mortgages.

Former Russian master spy Sergei Tretyakov and journalist Pete Earley reveal secrets of espionage in America after the fall of the Soviet Union. Tretyakov ran Russia's post-Cold War spy program — but also worked as a double agent with the FBI before his defection in 2000.

Julia Preston, national immigration correspondent for The New York Times, discusses the unintended consequences of the U.S. border crackdown — and how the battle over immigration is affecting communities across the country.