[nlnizpes] Suppressing the speech of prisoners

One of the benefits of the death penalty is that it permanently suppresses the speech of the convicted.

Hypothesize that regimes without the death penalty are (perhaps counterintuitively) more oppressive about suppressing the political speech of prisoners than those with it, especially those with swift application of the death penalty.

If it is legally acceptable to suppress of speech, especially political speech, of inmates (and I strongly suspect it is in the United States), then that gives the state incentive to concentrate its attention on those it wants to silence, seeking to convict them on one of their "three felonies a day".