Not exactly a recent change. Since the '79 revolution Iran has had a pretty hostile position against Israel and the US. A big part of that hostility was because the US and the UK overthrew their democracy to install a puppet dictator in '53.
Having anything a rich person in the US wants is a curse. We've overthrown governments for bananas and sugar. We tried to overthrow a government for cigars.
Basically the only reason Norway escaped this curse was they were next door to the USSR and the US knew fucking around there could easily land it in the USSR potentially also taking Sweden with it.
