For some this was economic - the lack of money, jobs or opportunity.

BBC: England riots study: Anti-police anger 'was factor'

Backers of Shariah-compliant finance see an opportunity for expansion amid the global economic downturn, and some Western banks are welcoming this growing source of new business.

CENTERFORSECURITYPOLICY: Center For Security Policy

Mr Steinmeier, who is under pressure from the SPD to demonstrate some economic leadership before the election, has now seized on Ms Merkel's obstinacy as an opportunity.

ECONOMIST: Angela Merkel

We may have lost some innocence, moreover, but America still remains a bastion of civil and political freedom and a locus of economic opportunity in a world not precisely overflowing with either of these things.

CENTERFORSECURITYPOLICY: Center For Security Policy