By all means our government needs to monitor and control all purchases of US products and if at all possible...find out why and what these products will be used for. Iran has not been our friend since the Shah was overthrown and Iran became a theocracy. The Shah was a terrible dictator who needed to be overthrown. And we put him in power and kept him in power for our own economic purposes. I believe in making friends with our enemies and our enemies enemies. The only way to do this is through intelligence information that gives us insight into what they might want from us and then use that to negotiate with them for mutually beneficial relations.