US official: Interim nuclear deal with Iran is getting close

The US and other powers are getting close to an inerim deal with Iran "that would prevent its nuclear program from advancing and roll it back in key areas," a senior administration official said Friday. Such a deal would "extend the breakout time" that Iran would need to achieve a nuclear weapon and "shorten the time to notice if they tried," the official told reporters, five days before the next round of negotiations takes place in Geneva