Though a longtime U.S. ally, Pakistan has been accused of harboring extremists within its borders, complicating U.S.-led efforts in neighboring Afghanistan. Margaret Warner discusses the complex alliance with Shuja Nawaz of the Atlantic Council's South Asia Center and Christine Fair of Georgetown University.

Report: Pakistan's Insurgent Havens Strain Ties With U.S.

Special correspondent Jeffrey Kaye reports on Pakistani flood victims' continuing needs for food, medicine, agricultural help and other aid as winter nears.

Pakistani government forces have been battling Taliban extremists, forcing hundreds of thousands of civilians to flee their homes and take up residence in tent camps.

The nation created as a home for British India's Muslims six decades ago has today attracted a growing number of violent extremists who use its territory to spread violence.