May 14, 2012. A United Nations visit to Iran's Parchin military complex may top the agenda of a two-day meeting between Iranian diplomats and UN nuclear inspectors. International Atomic Energy Agency (IAEA) officials will meet Iranian envoys at the nation's embassy in Vienna. The meeting is the first between the two sides since Iran snubbed inspectors' request to visit Parchin during a Feb. 21 visit to Tehran. Iran and the IAEA began a high-level dialogue in an attempt to address suspicions that the country is pursuing nuclear- weapons capabilities.