David Shayler reported one news article that reported a bomb had exploded underneath the tube. This is false.
Here is what prisonplanet, Alex Jones' conspiracy theorist site reports happened.
"Now another credible source, Guardian journalist Mark Honigsbaum, talked to eyewitnesses at the Edgware Road bombing, who essentially described the same thing.
Eyewitnesses told Honigsbaum that "tiles, the covers on the floor of the train, suddenly flew up, raised up."
How could the floor of the train raise up from a bomb supposedly in the backpack of an individual seated in the carriage, above the floor?
The victims then heard "an almighty crash" as a train traveling in the opposite direction collided, clearly indicating that the train had derailed due to the bomb being placed under the carriage."
Mark Honigsbaum has recently cleared this up...
"I asked passengers what they had seen and experienced and was told by two survivors from the bombed train that, at the moment of the blast, the covers on the floor of their carriage had flown up - the phrase they used was "raised up". There was no time to check their statements as moments later the police widened the cordon and I was directed to the opposite pavement, outside the Metropole hotel.
In the report, broadcast on our website, I said that it "was believed" there had been an explosion "under the carriage of the train". I also said that "some passengers described how the tiles, the covers on the floors of the train, flew up, raised up".
It later became clear from interviewing other passengers who had been closer to the seat of the explosion that the bomb had actually detonated inside the train, not under it, but my comments, disseminated over the internet where they could be replayed ad nauseam, were already taking on a life of their own.
"Did July 7 bombs explode under trains?" read a posting that referred to my report a few weeks later. "Eyewitness accounts appear to contradict the theory that suicide bombers were responsible for killing 39 [sic] passengers on London's tube network that day."
Another went even further: "How Black Ops staged the London bombings: Staged terror events - like magic tricks - rely on misdirection to throw people off the track ... The bombs on the underground were not in the tube carriages. They were under the floors of the carriages."