WASHINGTON (AP) — A U.S. submarine’s deadly attack on an Iranian warship does not appear to have violated international or American military law, though it’s not yet clear whether the sub took sufficient measures to rescue nearly three dozen survivors, legal experts said. Legal questions are swirling about the underpinnings for the entire U.S.-Israeli military operation against Iran , and the aftermath of the torpedo attack on the IRIS Dena in the Indian Ocean, the experts said. At least 87