I was stationed at our embassy in Tehran from 1977-79, including being there when our embassy was overrun on February 4, 1979. I am well acquainted with Carter's failures.
PS: it was my understanding that the son tried for years to get the US to honor promises made to the Shah, including arms sales that were never delivered to either party.
I was at the Embassy in Teheran in 1975, working at the “warehouse.” I went from there to Rome. When the “students” came over the wall in 1979, we were trying to support the evacuation of dependents. Several of the Marines from the Rome Detachment were sent to Teheran to supplement the Teheran Detachment. My two very good buds were the last two guys out. They were stopped at several “komiteh” roadblocks, manned by teenagers with AK-47s. A great roar of relief from the evacuees on that PANAM flight when the captain announced that they had exited Iranian air space.