Looking for the title/author of a science fiction short story.
The protagonist was a dissident in captivity. The government had the ability to kill him and bring him back to life multiple times. They tortured him to death multiple times (boiling in oil, crushing, etc.) and made him clean up his own corpse afterwards.
In the beginning, he wanted to convince them that he was no longer a dissident to get them to stop, at the end, he no longer feared death, and gave a speech convincing some listeners that the government was wrong. He was shipped off to a colony world at the end, since they didn't believe in capital punishment.