How come he didn't see the punch to Vidic's head by the keeper that floored him i the first half - I take it that's also dangerous (regardless of intent) as the keeper could have broken his cheek bone. In fact punching the ball by goalkeepers should be banned as dangerous - full stop...

You see how stupid the decision is? Almost every challenge and action on the pitch is potentially dangerous so unless there is some element of recklessness or intent it cannot be even a yellow card.
No intent - and it can only be deemed reckless if every time someone raises thet foot so high it is deemed an offence and then we kill the game - no overhead kicks etc...

I thought Man U were the better team, even for the last 20 minutes with 10 men they could have got back in it, but I do think that Madrid and Mourinho behaved with a lot of class.