Wise move, even under the very difficult circumstances the Iranians now face. The Americans rarely give 'aid' without political strings and motives. They pursue 'humanitarianism' much as they pursue 'democracy' -- with considerable hyprocrisy and deception. As for US AID, it has been closely integrated not only with the State Department but with the CIA for some time now, and never as much as today.
That the Americans want to 'cash in' on their aid shouldn't come as a surprise. That the Iranians are so far resisting that trade-off, that too shouldn't come as a big surprise. But what's ahead is mroe difficult to foresee as the Americans and Israelis will keep pressing and pressing, threatening and threatening, with the real goal being to one way or another topple the regime in Iran and take out Iran's significant weapons programs.