FOXNewsG20: Did police containment cause more trouble than it prevented?guardian.co.ukMany peaceful G20 demonstrators were yesterday caught up in the police tactic of "kettling" which kept them trapped and frustrated behind lines of officers for as long as eight hours.Video: Kevin Dougherty: G20 and the global financial system RTLondon Police Seal Off G-20 Leaders From Protests BloombergBBC News - Voice of America - FOXNews - Reutersall 8,040 news articles