As an aside, has anyone seen the story from Kentucky? If there's ever been a case of the coverup being worse than the crime...
The crime: patronage - giving jobs to campaign contributers.
The coverup: The Governor issues
blanket pardons to anyone who might have been involved except himself, requests that the investigation therefore be dropped, and then pleads the fifth.
Of course, it is hard to say what the actual effect will be, since legally speaking a pardon must be accepted to take effect, and such acceptance is an admission of guilt (again, legally speaking).