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Kurdish men walks close to the Turkish-Syrian border as smoke rises from the Syrian town of Kobane, also known as Ain al-Arab, as seen from the southeastern village of Mursitpinar, in the Sanliurfa province, on October 16, 2014. Turkey's ruling party said it was optimistic about the prospects for the peace process with Kurdish rebels after a spate of violence raised concern about its viability. AFP PHOTO / ARIS MESSINIS (Photo credit should read ARIS MESSINIS/AFP/Getty Images)
Kurdish men walks close to the Turkish-Syrian border as smoke rises from the Syrian town of Kobane, also known as Ain al-Arab, as seen from the southeastern village of Mursitpinar, in the Sanliurfa province, on October 16, 2014. Turkey's ruling party said it was optimistic about the prospects for the peace process with Kurdish rebels after a spate of violence raised concern about its viability. AFP PHOTO / ARIS MESSINIS (Photo credit should read ARIS MESSINIS/AFP/Getty Images)

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Is U.S. strategy against ISIS working?

With airstrikes only doing so much damage to ISIS, will the U.S. change its strategy? CNN's Barbara Starr reports.

Is U.S. strategy against ISIS working?

With airstrikes only doing so much damage to ISIS, will the U.S. change its strategy? CNN's Barbara Starr reports.