Oman has confirmed that Iran-US nuclear talks scheduled to take place this weekend at Muscat will not happen, marking a setback to diplomatic efforts at a time when Middle East tensions continue to rise. Oman Cancels Iran Nuclear Talks Under Pressure Oman’s Foreign Ministry issued a statement, through a spokesman, indicating that the planned U.S.-Iran Nuclear Meeting in Muscat for Sunday will no longer take place, due to an increasingly volatile security environment following hostilities between Israel and Iran and direct military hostilities between these two states. Wsj.com/wsj_com.svl_2Wait + 8 +8 Reuters/com.svv7 Wsj/wsj/wsj_com + 8 Wsj/wsj_com/wsj_com/wsj/com/8 Reuters/com/wsj/comOman had confirmed talks...