my view - Vettel was at fault. You saw him moving across into webber, who would have had to keep an eye on covering the maclaren round the outside rather than a banzai move up the inside by his team mate.
Re the maclarens racing, Hamilton's use of the word 'surprising' in the press conference was the important one when discussing the short duel. They had obviously been told to power back and save fuel. Hamilton's lack of enthusiasm at the flag was understandable.