If Sharp is all you say, then events in Egypt and, possibly, Tunisia and Libya could be construed as blow-back, producing unwanted disruptions of regimes long loyal to the USA. But, still, the body of work he has produced remains a tool that may be more likely to benefit the average citizen in affected countries, with lower loss of life, than were the other tools on offer. I don't think you can try to have an effect without getting dirty. The basic rule seems to be: "Whatever you love will be used against you."

"It is not necessary to have hope in order to persevere."