In April 2008, then-Homeland Security Secretary Michael Chertoff told Congress behavioral detection officers in Orlando found "all of the components for an explosive device" after searching Brown’s bag — a bag, the FBI later confirmed, contained neither explosives nor the initiator needed to create an explosion.
In other words, Chertoff lied to Congress about the case, yet he never has had to face one iota of legal trouble.
However, we see that the U.S. Department of Justice, led by Eric Holder, is sparing no expense in prosecuting Roger Clemens who allegedly "lied to Congress" about whether or not he took steroids when he was a Major League Baseball pitcher. Oh, I forgot. Holder himself lied to Congress about what he knew regarding the "Fast and Furious" debacle. Of course, we all know that it is much more important that former pro athletes facing a Congressional inquisition tell the truth than it is for administration officials to be truthful when testifying about life-and-death matters.