I can’t say with any certainty that the U.S. has had no involvement in or foreknowledge of the assassinations of Iranian nuclear scientists. As I see it, the source of these attacks is probably Israel. It’s much less likely to be the U.S. acting alone. And there is a small possibility that these attacks are self-inflicted by the regime to help them maintain the support of the people. Since I can’t know for certain who is responsible, it’s not easy to condemn anyone specifically. Instead, I have to talk in hypotheticals.
Obviously, if Iran is killing its own scientists and blaming the U.S. and Israel for it, that’s just plain evil.
If the U.S. is targeting their scientists then we should expect blowback. If we go kill civilians in their country, who is to stop them from coming here and killing civilians in our country. If we have nothing to do with these attacks, then we ought to have a discussion with the responsible party about how they’re putting us in danger.
If the assassinations are Israel acting alone without any assistance from the U.S., they should know that we don’t approve. If Israel wants to fight Iran directly instead of going through their proxies, that’s their business, but we shouldn’t be dragged into it.
I don’t think murdering scientists is a reasonable or moral or necessary way to prevent Iran from developing a nuclear weapons capability.