We write on behalf of the Free Iran Scholars Network (FISN), a coalition of academics and researchers committed to human rights, secular democracy, and the rule of law. We are writing to express our grave concern over the recent wave of repression against political prisoners in Iran. Prisoners are being removed without notice, denied communication, and relocated to undisclosed locations. These moves mirror tactics used in the lead-up to the 1988 massacre. They raise serious fears of covert executions or other forms of extrajudicial punishment. Read the complete letter here