Were the London Bomb Attacks on 7th July 2005 an inside job?

First off, nobody is suggesting the fire service and anybody but the highest echelons of the police service had any knowledge about this plot.

Secondly, there is much speculation and hyperbole concerning these events however there are some straight facts that are not disputed, these are just a few:

1. The police and emergency services were running a 'practice' event to enable them to deal with potential future terrorist attacks at the same time and the same places as the actual terrorist attacks took place.

2. There has been no verified claim of responsibility for the attacks by any group - ever.

3. There is no CCTV footage of the alleged terrorists actually boarding any of the target underground trains.

4. The UK government has the power to control absolutely all broadcasts by the BBC in any incident it considers a national security event.

5. There were alleged to have been four SUICIDE bombers one for each bomb who blew themselves up with their backpacks. Yet various news agencies and numerous eye witnesses reported three terrorists being shot by police in the Canary Wharf area.