It is precisely this sort of circle of violence that will forever condemn us to regimes like IR. Every new bunch kills off the old ones and holds on to power. Just outside Washington DC there is the Lee Highway. Who was Lee? He was Robert E. Lee, the Commanding General of the Confederate Army in a war that killed 300,000 Americans. He lost the war, surrendered and then was pardoned by Andrew Jackson. He later became a college president! It is well known that Khomeini upon his return chased down the paseban who had arrested him 15 years prior and had him executed.