Interesting article about British Muslim extremists and their dreams of committing terrorism in Britain: 'Terror on the dole'. It includes the following:

The question is: how worried should we be? Is al-Muhajiroun nothing more than a repository for disaffected Muslim youths who have adopted an extreme interpretation of Islam - perhaps to cock a snook at the white establishment - but who are essentially posturing? Or does the group also perform a more sinister function, sucking in alienated young men and brainwashing the more impressionable into becoming future suicide bombers?

Britain could, of course, avoid having to ask itself that question by expelling as many of these people as possible and refusing entry to anyone else who might be a danger.