Colson should stick with politics doing time in prison. He's pretty good at that.
I understand you may disagree with Chuck Colson about politics or what have you, but why would go all John Dean and say he should spend time in prison? He's plainly a good person who does a lot of good through his Prison Fellowship Ministries. He doesn't have to speak out on issues like prison rape to be popular or influential-- he just does because it's the right thing to do.