As Pakistan Expands Nuke Arsenal, U.S. Fears Grow : NPR: "As Pakistan tries to add to its stockpile of nuclear bombs, domestic terrorists are launching more sophisticated attacks on the country's military bases. Together, those trends are raising fears that terrorists might target Pakistan's widening network of nuclear facilities.
The U.S. relationship with Pakistan is fraught with anxiety and danger, and there is no more perilous element than Pakistan's nuclear weapons.
'It's the proliferation of that technology, and it's the opportunity and the potential that it could fall into the hands of terrorists, many of whom are alive and well and seek that in that region,' Adm. Mike Mullen, chairman of the Joint Chiefs of Staff, said in a recent appearance before a Senate panel."