Kerry hunkers down for 'lengthy' talks

US Secretary of State John Kerry pressed his Iranian counterpart yesterday to make "critical choices", six days before a deadline to cut a historic deal that would finally dispel fears about Tehran's nuclear drive.
Going into a second day of negotiations in Vienna with Foreign Minister Mohammad Javad Zarif, Kerry aimed to "gauge Iran's willingness to make the critical choices it needs to make," a senior US official said.
"That's a pretty serious and potentially lengthy conversation. The secretary will take the time necessary to have that discussion," the official said.
"I am glad that we can have some time to be able to catch up and pick up where we left off," said Kerry.
Zarif appeared to be in for the long haul too, telling Iranian media on Sunday there were still "seven difficult and tough days for discussion".
The mooted accord would kill off for good fears that Iran might develop nuclear weapons.