No deal on Iran's nuclear program

US Secretary of State John Kerry (L) shakes hands with European Union foreign policy chief Catherine Ashton before their meeting with the Iranian Foreign Minister on November 8, 2013, in Geneva, on the second day of talks with Iran on their nuclear programme. World powers and Iran have yet to reach a deal on Iran's nuclear programme but are working hard to do so, US Secretary of State John Kerry said on November 8. Kerry voiced caution at the talks, where officials have said they hope to sign a draft agreement that could see Iran freeze its nuclear programme in exchange for the easing of sanctions.  AFP PHOTO / POOL / JASON REEED

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    No deal on Iran's nuclear program

No deal has been made on Iran's nuclear program, but optimism remains. CNN's Karl Penhaul reports.