FILE PHOTO: The Iranian flag flies in front of the U.N. nuclear watchdog (IAEA) headquarters in Vienna, Austria, May 24, 2021. REUTERS/Lisi Niesner
DUBAI (Reuters) - Negotiations to revive Iran's 2015 nuclear agreement with world powers will fail unless U.S. President Joe Biden can guarantee that Washington will not again abandon the pact, the head of Iran's Supreme National Security Council said on Wednesday.
"The U.S. President, lacking authority, is not ready to give guarantees. If the current status quo continues, the result of negotiations is clear," Ali Shamkhani said in a tweet.
