Representatives of Biden are in Vienna for negotiations with Iran on the nuclear issue.
The first round of negotiations was constructive, according to Iran.
This Islamic republic was less than a year away from getting an atomic bomb but now it would be a matter of months, according to Antony Blinken, the US secretary of state, so there is a sense of urgency to finalize a new agreement.
Follow up on this theme with Joseph Levy's report from Jerusalem.