This sort of thing is appalling, but it's important to remember that not all Muslims are like this. To assume that they are is almost as bad as what the nutters in the article did.
It's also very, very important to realise that not all Muslims are the same.
Let's take the U.K; Pakistanis are very, very different to Bangladeshis. Pakistanis from Mirpur (3 out of 4 British Pakistanis are from that one obscure district in Kashmir; the city was flooded by the Pakistani Government to build a dam. You couldn't "send them back" even if you wanted to) are different to Pakistanis not from Mirpur.
Even after this there's a big differance between Mirpuri Kashmiris in London, Birmingham, Leicester and (especially) the Pennine Belt. And in the Pennine Belt there's a big difference between the young and the old and within the young between a small minority of nutters and an overwhelming majority of people who just want to integrate, to be normal.
I'm curious. What are the differences? I don't really interact much with the Pakistani and Bengalis here in the states beyond the occasional taxi driver and convenience store guy. (not trying to be funny there but its the truth)
