A performer dances in the street parade at the annual Notting Hill Carnival in central London August 28, 2011. Revellers packed London streets on Sunday for one of Europe's biggest street parties with record numbers of police on duty to make sure there was no repetition of riots that scarred the British capital three weeks ago. REUTERS/Luke MacGregor (BRITAIN - Tags: ENTERTAINMENT SOCIETY CRIME LAW TRAVEL)
Revelers are pictured during the Notting Hill Carnival children's day in London, on August 28, 2011. London's police were out in force as the Notting Hill Carnival got under way Sunday in a bid to stop Europe's biggest street festival descending into a repeat of this month's devastating riots. The two-day showcase of Caribbean culture in west London attracts up to a million revellers to watch troupes of dancers in exotic costumes perform on floats as powerful sound systems pump out music. AFP PHOTO / FACUNDO ARRIZABALAGA