Tribal areas of Pakistan & Afghanistan pose threat to US:
Tribal areas of Pakistan and Afghanistan pose primary threat to the security of the US, even as the terrorists have expanded their networks in other parts of the world too, Federal Bureau of Investigation head Robert Mueller said.
Afghanistan and Pakistan pose a major security threat to the United States, where Al-Qaeda and its affiliate terrorist groups are seeking to regain territorial control, President Barack Obama's nominee to be ambassador to Kabul said on Thurday.