So, we all know the one that was called (and that cost us the game).  New photojournalistic evidence reveals a better example of what tripping looks like in the NFL.  Desperate, flailing, defeated, laying on one's back, completely out of the play, having been run over by a freight train, and having nothing left to do but throw up one's legs, etc.  As the Steelers will be if we have the fortune of playing them again when it really counts.