U.S. Ambassador to the United Nations Nikki Haley says blaming the U.S. for a "security incident" at home is a big mistake for Iran. Iranian officials claim Gulf countries and their "U.S. masters" recruited and armed the individuals responsible for the attack. At least 25 people were killed in southwestern Iran Saturday during a military parade. The President of Iran called the U.S. a "bully toward the rest of the world." For his part on Fox News Sunday U.S. Secretary of State Mike Pompeo said President Trump would be open to meeting with Iranian leaders at this week's United Nations General Assembly meeting.