The U.S. government seems to be really good at indicting famous people, such as Martha Stewart and most recently Roger Clemens. But it seems to really kind of suck at actually going after big time lawbreakers in the government. Torture became standard operating procedure when it broke all sort of treaties the U.S. had signed onto. Politicizing the Dept. of Justice under the Bush administration? No big deal. Illegal wiretaps? Yep, that's O.K. too.
Yeah, there have been a few elected officials that eventually serve time for their misdeeds. Randy "Duke" Cunningham is still in the clink, I believe.
I agree that lying to Congress isn't really a wise thing to do. But really, doesn't the government have anything better to do than go after Roger Clemens?