Mare Achblg Capability News Today

its one of the u.s. militarys most important weapons systems playing a critical role in the fight against terror. and now theres new growing concern over the computers that concern drone aircraft. theyre 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 dont know if this virus is benign or truly doing harm. it has not stopped t...