Interview: Stall Foreseen In Iran Nuclear Talks
Diplomats say nuclear talks with Iran will likely be adjourned Friday and extended past the July 20th target date for a deal.
Both sides had been prepared to talk until Sunday, which had been informally set as the deadline for the negotiations, but significant differences remain.
The talks are meant to result in a deal that curbs Iran's atomic program in exchange for an end to nuclear-related sanctions on the country.
ABC News correspondent Tom Rivers joins us from London.
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