The United States carried out retaliatory strikes on Friday in Iraq and Syria against facilities linked to Iran's Revolutionary Guards and the militias they back‚ four U.S. officials said‚ after a deadly attack in Jordan that killed three U.S. troops and injured some 40 others. The strikes are believed to be just the first in a multi-tiered response by President Joe Biden's administration in response to the attack last weekend carried out by Iran-backed militants. While the U.S. strikes...