Kimble appeared on the NSA radar back in 1994. He was allegedly part of a global conspiracy trading in calling cards stolen from AT&T. They were stolen by an insider and cost AT&T an estimated $20 million if memory serves me right.

This was back in the day, just after many countries made the switch from analogue to digital telephony and blue boxing was no longer viable. BBS access (I.e. pre-Internet) was therefore harder to get for free. Hacking int. PBXes with 0800 numbers and calling cards were the next best thing at the time (allegedly :-] )

Due to the nature of the crimes the case fell under the jurisdiction of the US Secret Service. Kimble has been on their hit-list ever since. The guy is like a soap bar to the US security apparatus. They are dying to get their greasy mitts on him. Every time they get close he slips out of reach.