Why racial profiling won't work

Al Qaida will recruit white Britons.

As many as 1,500 white Britons are believed to have converted to Islam for the purpose of funding, planning and carrying out surprise terror attacks inside the UK, according to one MI5 source.

Not all of them will radicalize, but it's a potential talent pool. Though not explicitly stressed by the source, it's also clear that prisons are a recruiting ground. Perhaps reason enough to reexamine the prison system.