Generate text that refutes this claim: Would stop riots from spreading  The police must try to stop riots from spreading and stop copycat rioting elsewhere. Knowledge of rioting happening elsewhere is often the Oxygen of riots; the riots in Manchester and elsewhere outside of London in 2011 were mostly as a result of media exposure. According to Greater Manchester Police chief Peter Fahy "A certain group of people saw what was happening in London and decided they seemed to be getting away with it. We knew what was absolutely critical was that there needed to be control of London. Because that was just creating more and more copycat violence up here." [1] Cutting off social media would have helped prevent the riots from spreading so ensuring that they remain small and a localised problem.  [1] Pilkington, D., “Rioting in London sparked 'copycat' behaviour”, The Independent, 14 November 2011.
access information house would block access social messaging networks
Preventing word from getting out through social media and stopping those who inevitably try to take advantage of the rioting to ferment violence elsewhere is not something the police should be doing. In a free country anyone should be allowed to report on what they are doing and on riots that are occurring. Moreover a shutdown would be ineffective at preventing the news getting out as the traditional media would still be broadcasting. In 270 interviews done by researchers into the riots more than 100 people said they heard about the riots through TV news, more than through social media. [1]  [1] Adegoke, Y., and Ball, J., “Twitter? Facebook? Rioters saw it on TV”, guardian.co.uk, 7 December 2011.