Before Nelson Mandela was arrested in 1962, he was an angry, relatively young man. He founded the ANC's military wing. When he was released, he surprised everyone because he was talking about reconciliation and forgiveness and not about revenge. ↗
As far as those kinds of things, I also played at the concert to call for the release of Nelson Mandela when he was a political prisoner in South Africa. We were celebrating his 70th birthday and calling for his release. ↗