Iran and the United States exchanged new threats, with US President Donald Trump warning Iran would fail economically or face its leadership being wiped out if it did not make a deal, and the Iranian military saying it would retaliate harshly to any fresh attack.

Iran and the United States exchanged new threats, with US President Donald Trump warning Iran would fail economically or face its leadership being wiped out if it did not make a deal, and the Iranian military saying it would retaliate harshly to any fresh attack.

By Jana Choukeir and Doina Chiacu DUBAI/WASHINGTON, Sept 20 (Reuters) - Iran and the United States exchanged new threats on Sunday, with President Donald Trump warning Iran would fail economically or