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Smoke billows near a road leading to Tripoli international airport during clashes between Islamist-led militiamen and rival ex-rebels who control the facility, on July 20, 2014, in the Libyan capital Tripoli.
Smoke billows near a road leading to Tripoli international airport during clashes between Islamist-led militiamen and rival ex-rebels who control the facility, on July 20, 2014, in the Libyan capital Tripoli.

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Journalist Chris Stephen speaks with CNN's Christiane Amanpour about escalating unrest in Libya.

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Journalist Chris Stephen speaks with CNN's Christiane Amanpour about escalating unrest in Libya.