There is a report that Israel might have warned Scotland Yard minutes before it happened.
Just heard that on MSNBC.
Not on Fox. Just the opposite - that UK warned Israel. Yes, I know it doesn't make sense and the Fox folks are sceptical that it is a valid report, but that is the way it is being reported there.
One of their people is saying that destructive power of the bomb is multiplied by 10 X in a contained space like the subway.