Not only is there institutional pressure to convict, there is, it seems real pressure to stay away from politically sensitive targets like...say...
This from the NYT:
The Justice Department's inspector general and the F.B.I. are looking into the demotion of a veteran federal prosecutor whose reassignment nearly three years ago shut down a criminal investigation of the Washington lobbyist Jack Abramoff, current and former department officials report.
They said investigators had questioned whether the demotion of the prosecutor, Frederick A. Black, in November 2002 was related to his alert to Justice Department officials days earlier that he was investigating Mr. Abramoff. The lobbyist is a major Republican Party fund-raiser and a close friend of several Congressional leaders.
Colleagues said the demotion of Mr. Black, the acting United States attorney in Guam, and a subsequent order barring him from pursuing public corruption cases brought an end to his inquiry into Mr. Abramoff's lobbying work for some Guam judges.