Almost as soon as the alleged plot to blow up aircraft was announced, the conspiracy theories began.
The internet is alive with claims that it is all a diversion created by politicians.
"No one has been killed. No bombs have gone off. No one was caught with actual bombs," one e-mail claims. Revealing a knowledge that might be envied by most journalists, it says there is "no evidence" for a "supposed terrorist plot" and accuses reporters of participating in propaganda.
Thousands of copies have arrived at in-boxes since the arrests on Thursday, sent by those on the internet styling themselves "truth activists".
The missive has been forwarded not by an Islamic community in denial, but by people such as Bill Boggia, 40, an engineer from Aberdeenshire, and Penny Pullen, a retired teacher from Cumbria.
The original was posted on a website called Iran Solidarity, run from a flat in Glasgow by Colin Buchanan. That in turn was sent to him by Andrew Johnson, 41, a software developer from Borrowash, Derbyshire.
On his website, Check the Evidence, Mr Johnson also suggests that man may not have landed on the Moon and UFOs really do exist. More seriously, he claims that the September 11 and July 7 attacks were part of a larger government conspiracy; the World Trade Centre was blown up without any involvement from Muslims and, despite forensic evidence to the contrary, the London Tube bombers "could have been going on a hiking trip in France".
He adds: "The media is brainwashing people about the Muslim terrorist threat."
At his website The Truth Seeker, Rixon Stewart, from Wiltshire, quotes neighbours who said those arrested were "very friendly to everyone" as proof that they are innocent.
Ignoring the fact that British media are banned from reporting evidence against individuals before they are brought to trial, he adds: "Not a single shred of hard evidence has been produced to substantiate police claims."
Paul Watson, an internet blogger at Prison Planet, writes: "Only through a massively increased counter-propaganda effort on behalf of all truth activists can we prevent an imminent cataclysmic horror show."