(Reuters) - Iran has stuck to "unworkable and inadequate" positions in nuclear talks with six world powers despite a looming deadline for a deal to end sanctions against Tehran in exchange for curbs on its atomic program, a U.S. official said on Saturday.
"We are still very far apart on some issues and obviously on enrichment capacity," the senior U.S. administration official told reporters hours before Secretary of State John Kerry was due to arrive in Vienna to join the talks with Iran.
The major powers want Iran to scale back its nuclear program to deny it any capability to quickly produce atomic bombs. Iran says its activities are entirely peaceful and want crippling sanctions lifted as soon as possible................more
