Anchor Marco Werman speaks with William Langewiesche, author of the book, "The Atomic Bazaar," about a Pakistani high court decision to release AQ Khan from house arrest. Khan is often referred to as the man who gave Pakistan nuclear weapons.

President Obama's new envoy to Afghanistan and Pakistan, Richard Holbrooke arrived in Pakistan today. Holbrooke pledged to forge a new strategy and urged allies to do more in the war against insurgents. The World's Jason Margolis has more.

Today on The World: The new U.S. envoy arrives in Pakistan to forge a new strategy; Also a look at the race leading up to tomorrow's general elections in Israel; and the party that ruled Mexico for seven decades may be making a comeback.

Exactly thirty years ago this Tuesday, the regime of the Shah of Iran collapsed, to be replaced by the Islamic Republic. The effects of that revolutions are still being felt. But inside Iran itself, most of today's population were not born when those momentous events were taking place. Our Tehran correspondent Jon Leyne has been examining the impact of the revolution, three decades on.