Just the facrs from Chris Dillow:
The fact that a terrorist is likely to be a Muslim does not mean a Muslim is likely to be a terrorist. Even if we assume that there are ten terrorists walking the streets for every one inside, then 99.988% of Muslims are not terrorists. To put this another way, there's only around a one in 8000 chance of a Muslim being a terrorist; it's 16 times more likely that the Duke and Duchess of Cambridge will name their child Wayne. Given all this, why does anyone think terrorism is a Muslim problem?