Benefits system exploitation

An undercover journalist from the (London) Sunday Times has been listening at Islamic extremists' meetings since mid-June. He attended regular lectures and sermons, sometimes attended by school children, where he heard the London bombings referred to as the "Fantastic Four".

It is interesting reading, to say the least. However, one small section caught my eye and has me wondering if the whole social welfare system will have to be rethought:

[i]ntegration with British society is scorned, as is any form of democratic process. Followers are encouraged to exploit the benefits system. They avoid jobs which could bring them into contact with western women or might lead them to contribute to the economy of a nation they are taught to despise.

It's bad enough that there is a fifth column inside Britain, but the British taxpayer is underwriting the operation. This has got to be tackled, although I doubt it can be done in a way that doesn't cause at least some hardship for many others.