The 'HOW' is not as important as the 'WHY'
Questions such as how 40% of the people doing the rioting had more than 10 convictions and other such statistics are far more valuable to finding a long-term solution to this sort of disturbance than blaming the police, social media or video games.
Politicians seem to be more inclined to see the 'rioters' as an enemy that must be battled, and as long as that kind of thinking prevails then it will be a never-ending task (much like the 'war on terror' I would say) since the underlying causes will never be acknowledged, let alone addressed.
If the emphasis was placed on a range of other issues then I would suggest a picture might emerge:
House prices, jobs - particularly home-grown ones, education, discipline, rights AND responsibilities (and so on).
For instance I feel sorry for all the students who cannot get jobs after studying hard, let alone the students who cannot get into university when they deserve to - and when they do they cannot afford to stay.
If they are not going to be contributing to society then they will be taking from it - which is sad for everyone.
For me the main issue as far as the riots go is what made the rioters feel that it was worth it to riot - do they have nothing to lose?
ttfn