Do provocative, controversial campaigns work?

The charity, Adults Surviving Child Abuse (ASCA), has launched a campaign today of "in your face" print, radio and television commercials designed to get the issue of the long-term effects of child abuse onto the political agenda.

Do you think such campaigns work? What are the pros and cons of running such an approach to get attention to your cause? What role can public relations play in such a campaign?

Check out ASCA's media release and commercials here.