[Wilko]

Think about this logically. You are a London Policeman. Your Country has been attacked recently by Terrorists, specifically the Tube Stations. You see a guy, who is foreign in appearance (by Foreign, i mean not Anglo), acting suspiciously inside a Tube Station. You also notice he has wires and assorted shit hanging out of his rucksack. You approach him, and he begins to run. What do you do?

In my opinion, it would have been irresponsible for them NOT to shoot him. It's gotta be a 1 in 100 shot that an innocent person would react like that in that circumstance. It's a shitty situation, but the guy brought it upon himself.