Source: CNN

Watch more about Olympic Security on “Connect the World” on Friday at 8p.m. GMT, and watch the inspiring “Caging Terror” documentary Saturday at 9.30a.m., 7p.m. and 10.30p.m. GMT and Sunday at 2.30p.m. GMT.

London (CNN) — In the shadow of London’s Olympic stadium, home of the Summer Games, is a hotbed of radical fundamentalism dubbed Londonistan, from where al Qaeda has already recruited for some of its most ambitious plots.

In past months, dozens of convicted terrorists have been released in the UK, including onto the same London streets. Seldom since 9/11 has al Qaeda, though weakened, had such an opportunity to create carnage on the global stage.

At the same time a no-holds barred fight for security is under way. It is unorthodox, but British officials say it is working, producing results which have never been seen before — and at its epicenter is a veteran Muslim cagefighter.

Over the last six months Usman Raja gave CNN exclusive access to his pioneering work; speaking for the first time about his work with former terrorists.

In the past two years more than 50 convicted terrorists have been released from British jails after serving their sentences, producing a major headache for British security services.

Read about some of Raja’s success stories

Cagefighter turns terrorists to peace

Second chance for released terrorists

Cagefight program attracts UK officials

“Unfortunately, we know that some of those prisoners are still committed extremists who are likely to return to their terrorist activities,” Jonathan Evans, the director of British domestic intelligence service MI5, warned two years ago.

The task of managing the re-integration into society of these young men has proved beyond the capabilities of most Muslim community groups. But one east Londoner, proud to be both British and Muslim, has felt religiously compelled to take on the fight.

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