For the first time in more than a year, diplomats from Iran will meet with representatives from the five permanent members of the U.N. Security Council — U.S., Britain, France, Russia and China — plus Germany.
The meeting, to be held in Istanbul this weekend, will focus on Iran's controversial nuclear program.
When similar talks have taken place in the past, Iranian officials tended to use the sessions to complain about the ways the U.S. and the West have treated Iran badly, and little actual negotiating got done.