There are reports that U.S. special forces snatch squads are on standby, awaiting orders to seize or disable Pakistan’s nuclear arsenal in the event of a collapse of government authority or the outbreak of civil war in Pakistan.
[…]Military sources say contingency plans are being continually being reviewed and re-evaluated to prevent any of Pakistan’s atomic weapons falling into the hands of Islamic extremists if President Pervez Musharraf’s administration appears threatened by civil unrest.

