Allow all prisoners to talk to reporters and the general public directly at least once per week for one hour, with no censorship. There is some risk they will pass coded (or not) messages to commit crimes but this is outweighed by public knowledge of anything the prisoner wants to say, for example details about his case, prison conditions, etc.
If we want to keep our prison system just, this is the best way to do it. You can be sure that the prisoners will be very quick to complain about injustice.
The ACLU regularly receives reports of prisons and jails restricting the rights of prisoners to communicate with their family members and the public. Prohibiting prisoners from communicating with the outside world can violate the First Amendment to the U.S. Constitution. The U.S. Supreme Court has ruled that the First Amendment entitles prisoners to receive and send mail, subject only to the institution's need to protect security. Many restrictive policies serve neither this nor any other legitimate purpose.
This idea first came to me when Noriega was arrested and charged with drug trafficking.
He was not allowed to speak to the public at all. If they had let him speak, he would have told about the Bush family's involvement in that drug trafficking.
If we want to keep our prison system just, this is the best way to do it. You can be sure that the prisoners will be very quick to complain about injustice.
https://www.aclu.org/issues/prisoners-rights/civil-liberties-prison/free-speech-prison