There is outrage over the death of Iran's most senior nuclear scientist, Mohsen Fakhrizadeh. Armed assassins gunned him down in his car near Tehran on Friday. No one has claimed responsibility for the killing. Iran's top leader Ayatollah Ali Khamenei has called for "definitive punishment" of those behind the attack.

The killing of Mohsen Fakhrizadeh came less than two months before Joe Biden is to take office in the U.S. Biden has committed to restoring the nuclear deal with Tehran. Political analysts Sarbas Nazari and Amir Oren tell us how killing can affect the policies of Iran, Israel, and the U.S.