Just saw him last night on "Mars Attacks". He was great in Witness.
The whole Internet angle is a bit silly and all-but impossible to pull off.
I thought it was silly that the female director gave in so easily to Jack. The obvious way to deal with him would have been to shoot him like he shot the suspect to extract where the computer guy was.
But the "I'm a hardass by the book person -- oh wait a minute, now I'm not" reversal was a bit forced.