Students of Iran's Basij paramilitary force burn posters depicting US President Donald Trump (top) and President-elect Joe Biden, during a rally in front of the foreign ministry in Tehran, on November 28, 2020, to protest the killing of prominent nuclear scientist Mohsen Fakhrizadeh a day earlier near the capital. - Iran's President Hassan Rouhani accused arch-foe Israel of acting as a "mercenary" for the US and seeking to create chaos, blaming it for the assassination of a top Iranian nuclear scientist. (Photo by ATTA KENARE / AFP)