From the WaPo:

The White House has refused to give Congress documents about the death of former NFL player Pat Tillman, with White House counsel Fred F. Fielding saying that certain papers relating to discussion of the friendly-fire shooting “implicate Executive Branch confidentiality interests.”

Can one assume that there was some sort of communication between the White House and the Department of the Army saying something like “we really want to hype the heroic death of Pat Tillman because it’ll get the public behind our war more?”
Every time I think this Administration can sink no further into a morass of stupidity and venality, it finds new depths to plumb.