The latest attempt at ceasefire talks between the U.S. and Iran appears to have failed. Tehran's top diplomat left Pakistan on Saturday, and President Donald Trump says he told his envoys not to travel to Islamabad. The talks were meant to follow historic face-to-face negotiations earlier this month. Iranian officials have questioned U.S. trustworthiness after American forces blockaded Iranian ports in response to Tehran's grip on the Strait of Hormuz. Iran had said any talks with the U.S. would be indirect. The economic fallout continues to grow. Another ceasefire, between Israel and the Iranian-backed Hezbollah, was shaken as each side fired at the other.