AC was caught anawares in the middle of the pack when AS attacked. AC didn't see any of AC chain troubles, according to AC's emphatic words.
Guys, AS was given one chance. Two would be ridiculous. AC wouldn't have given it even if he had notices AS's mechanical problem.
If you watch the footage, AS attacks from behind the pack, Vino pursues and, just after the image changes, you can see AC attacking.
Then all hell broke loose. Sanchez and Menchov didn't suck AC's wheel either.
I know Schleck and his followers must be mad but, hey, that's the game, folks. No one waited for AC the day of the pavés when he had a flat tyre at the end of the stage and lost 13'.