Fire fighters and riot police survey the area as fire rages through a building in Tottenham, north London Sunday, Aug. 7, 2011. A demonstration against the death of a local man turned violent and cars and shops were set ablaze. (AP Photo/PA, Lewis Whyld)

Rioters face off with riot police officers on the streets in Tottenham, north London, on Sunday Aug. 7, 2011. The gritty north London neighborhood of Tottenham exploded in anger Saturday night after a young man was shot to death by police. (AP Photo/PA, Lewis Whyld)

British police officers charge rioters, during riots in Hackney, east London, Monday Aug. 8, 2011. Youths set fire to shops and vehicles in a host of areas of London _ which will host next summer's Olympic Games _ and clashed with police in the nation's central city of Birmingham, as authorities struggled to halt groups of rampaging young people. (AP Photo/Lefteris Pitarakis)

British police officers charge rioters, during riots in Hackney, east London, Monday Aug. 8, 2011. Youths set fire to shops and vehicles in a host of areas of London _ which will host next summer's Olympic Games _ and clashed with police in the nation's central city of Birmingham, as authorities struggled to halt groups of rampaging young people. (AP Photo/Lefteris Pitarakis)