As political unrest shakes Egypt, the Iranian government has quietly hanged at least 73 people in recent weeks in what may be an effort to discourage new uprisings in Tehran. Omid Memarian and Roja Heydarpour on the secret prisons and brewing backlash.
Protesters outside the Iranian embassy in Rome on Jan 27 held photos of two activists reportedly executed days earlier in Iran. (Andreas Solara, AFP / Getty Images)
