FRONTLINE's monthly magazine program investigates:

In the aftermath of the killing of Osama Bin Laden, FRONTLINE presents two inside views of the fight against al Qaeda and the Taliban. First, Afghan journalist Najibullah Quraishi-who reported last year's award-winning FRONTLINE film Behind Taliban Lines-once again journeys deep inside enemy territory. This time, he gains extraordinary access to a band of militants and foreign fighters in Afghanistan who say they're loyal to bin Laden and are readying a Spring offensive against the U.S. Then, FRONTLINE crosses the border into Pakistan, where correspondents Stephen Grey and Martin Smith go inside "The Secret War" against the militants. They uncover new details of a CIA "private army" of militiamen launching kill raids against al Qaeda and the Taliban inside Pakistan. They also find new evidence of covert support for elements of the Taliban by the Pakistani military and its intelligence service, the ISI. At a safe-house not far from where bin Laden was killed, they make contact with one mid-level Taliban commander who tells FRONTLINE, "If they really wanted to, [the Pakistanis] could arrest us all in an hour."