"I see nothing heroic about what I did," says Dadge. "You simply do what you have to do. You don't think about it, you just do it -- like a lot of people here did.

"That should be a message to these terrorists, whether they turn out to be al-Qaida or not," says Dadge. "You won't beat us down here in London. Rest assured, we'll all be back on those trains."