Views on Rioting?

Dear /newpoll/, I do not frequent this board often, but I have come seeking knowledge. With the recent riots in the UK, and seeming civil unrest in many countries all over the world, what is /newpoll/'s view on riots, morally, or politically, and when would you consider rioting justified?

Rioting is good if there's a point. If it is just niggers and chavs breaking shop windows; why bother?

If you're fucking storming parliament or the white house to chop those fuckers' heads off, well... that's a different story.