Generate text that refutes this claim: Police should not block the communications and freedom of expression of law-abiding citizens  The blocking of social networks, of the internet, or of mobile phone networks in times of riot would be an illegitimate curtailment of a private company’s right to do business and serve its customers. Social networks are business and have many users. Even more important is the impact on everyone who is not associated with the rioting. When these actions are taken it harms everyone, perhaps even millions of people at a given time. [1] The action taken by the state to seek to prevent the spreading of the riots is not only ineffective it is also a massive imposition on the rights of the citizens of the polity. Their freedom of speech is curtailed, business is harmed, and the riots continue. Studies of the use of Twitter during the riots in London showed that during rioting it was mostly used to react to the riots to send warnings to avoid trouble rather than incite violence. [2] Blocking access or cutting off communications would therefore mean putting at risk those people who otherwise would have been warned not to go near areas with rioting.  [1] Temperton, J. “Blocking Facebook and Twitter During Riots Threatens Freedom”. Computer Active. 15 August 2011.   [2] Ball, J., and Lewis, P., “Riots database of 2.5m tweets reveals complex picture of interaction”, The Guardian, 24 August 2011.
access information house would block access social messaging networks
Private companies have no right to do business when that business is facilitating violence even if that facilitating is unintentional. Sometimes brief impositions are necessary to secure public order. In the course of a riot Twitter can be blocked temporarily to have a meaningful effect on its coordination, extent, and level of violence. This however need not cause problems with those uninvolved not receiving prior warnings as the police could do this before shutting down the network in the local area. And of course when the riot is over the service can return as normal. Ultimately the disruption is very brief, and not likely to ruffle too many feathers overmuch.