Freedom's just another word for nothin' left to lose

Quoting the Israeli daily newspaper Yediot Ahronot, Aljazeera says that Israeli nuclear whistleblower Mordechai Vanunu will be freed in April, but placed under tight surveillance, confirming a report in the Toronto Star a month earlier.

Israel's security services would bar Vanunu from giving press interviews, publishing a book, travelling overseas or within Israel, and planned to monitor his correspondence, the paper added.

Vanunu would also be required to regularly check in with the police.

This must be some new meaning of the word "freed" of which I'm unaware.

I'll repeat the question I asked a month ago: What can he know after 20 years that is still so vital that he has to be gagged?