Iranian Foreign Minister Mohammad Javad Zarif (L) waves from a balcony of Palais Coburg, the venue of nuclear talks in Vienna, Austria, Nov. 22, 2014. The world's major powers and Iran are racing against time to reach a deal over Tehran's nuclear program. As for the Nov. 24 deadline, there are only two days left in the talks between Iran and the P5+1 group. (Xinhua/Zhang Fan)