06/03/2009 05:12 am ET Updated May 25, 2011

Fears Rise About Security Of Pakistan Nukes While US Officials Are Rebuffed On Info

WASHINGTON -- As the insurgency of the Taliban and Al Qaeda spreads in Pakistan, senior American officials say they are increasingly concerned about new vulnerabilities for Pakistan's nuclear arsenal, including the potential for militants to snatch a weapon in transport or to insert sympathizers into laboratories or fuel-production facilities.

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