Just so the people that didn't catch it the first time..
The police said they had trailed a man, described as South Asian in appearance, from a house in Stockwell, a hardscrabble neighborhood of South London.
I think the coppers knew something more about this guy before he jumped the turnstile.
Any thoughts?
Yes, sounds like this guy had already been under surveilance - I think he must have done more to arouse suspicions than simply wearing a big coat and jumping a ticket barrier.
I'm looking for more on this now, this story has more info:
http://www.timesonline.co.uk/article/0,,22989-1705147,00.html
"Police are describing him as an “intimate accomplice of the cell”. His name and address were thought to have been found among the possessions left by the would-be bombers on Thursday."
That gives us more of a clue as to why he was being followed.