The standoff between the United States and Iran has taken a more ominous turn in recent days following failed peace talks. Now one of President Donald Trump's former top officials is warning that things could escalate fast. Former Secretary of State Mike Pompeo, who held the role during Trump's first term in the White House, is backing the commander-in-chief's aggressive strategy in the Middle East, predicting that any Iranian attack on U.S. forces would trigger a devastating response. Pompeo told Fox News that Iran "now has a very difficult decision to make...