I remind you that on 9-11 there was an air force anti terrorist training exercise that was occuring as the actual hijacked planes were in the air. The 9-11 commission found that this caused great confusion in supposedly being able to respond effectively since the "this is not a drill" announcement was 1 our and 45 minutes too late.

Well take a look at the coincidental circumstances in London.

http://www.prisonplanet.com/articles/july2005/090705bombingexercises.htm