Possibly the worst call in the history of baseball.

WOW, that was horrible!

I think that's putting it lightly. I really have no idea how that call could have just been missed. I don't usually suspect umpires of throwing games, but if there was ever a case to be made this call certainly wouldn't help!
Its all about the angle. The ump is lined up so from his angle it appears the first base player is touching the base. Plus, the umps arent exactly young, fresh, wellsighted guys.. its an awful call, but the human mind can be fooled so easily by angles.
This is one of the reasons why I think that there should be a little more reviewable plays in baseball.