Until I heard a piece on NPR a couple of weeks ago about this, I had no idea that there are people in Britain who think the 7/7 tube attacks were not the work of radical Islamic suicide bombers, but were instead the work of MI6, Britain's intelligence agency - just like the 9/11 Trootherz think the US government was behind 9/11. Fascinating!

Here's my favorite bit of "evidence":

What is the reason behind Alan Greenspan's decision to flush nearly $40 billion in liquidity into financial markets two days before the attack? Was this an attempt to preemptively head off a run on the markets? If Greenspan had information about a terror attack then why didn't the people on the trains and buses get the same warning?

There are tons of conspiracy-minded pages out there, if you want to browse around.