Forgery of official government documents is a Class 3 felony in the U.S. criminal code. If these documents are tied back to anyone in the CBS/Kerry/DNC camp, there'll be some people going to jail. Let alone Bill Burkett, who's going to be receiving a visit from the U.S. Attorney's office, I'd bet.
The only problem is they are not forged documents, they are just plain fakes.
If they cut and pasted a scan of Killian's signature (which looks like they did and it shrunk more via the repeated faxing and copying) then maybe you could go for identity theft.
But forgery can't be proven.
Does that include stealing them from the National Archives, shoving them down your pants, marking them up and then returning them later?