CNNW The Situation Room With Wolf Blitzer October 10, 2011
it's one of the u.s. military's most important weapons systems playing a critical role in the fight against terror. and now there's new growing concern over the computers that concern drone aircraft. they're infected with a persistent virus but it is only part after much, much bigger threat. our correspondent chris lawrence is investigating all of this for us. chris, what are you picking up? >> right now, officials don't know if this virus is benign or truly doing harm. it has not stopped the pilots from actually flying the drones over their missions in places like afghanistan. but r...
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