Maybe she is supposed to be dead, but you'd think guys who can attach an amazing homing device to a little floppy disk could manage to sift through some debris for human remains. If this is starting to sound confusing, it's probably due to the pressure of an incredibly intricate but completely inconsistent plot. The story, basically, doesn't make sense. My friend sighed and told me it was just a movie. She had a point, but my suspension of disbelief was starting to seriously crack under the weight of illogic and my disappointment with the bimbo status of the female lead.
Somebody somewhere has to have a plan.