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In this image provided by the U.S. Navy, the guided-missile destroyer USS Porter (DDG 78) launches a tomahawk land attack missile in the Mediterranean Sea, Friday, April 7, 2017. The United States blasted a Syrian air base with a barrage of cruise missiles in fiery retaliation for this week's gruesome chemical weapons attack against civilians.  (Mass Communication Specialist 3rd Class Ford Williams/U.S. Navy via AP)
In this image provided by the U.S. Navy, the guided-missile destroyer USS Porter (DDG 78) launches a tomahawk land attack missile in the Mediterranean Sea, Friday, April 7, 2017. The United States blasted a Syrian air base with a barrage of cruise missiles in fiery retaliation for this week's gruesome chemical weapons attack against civilians.  (Mass Communication Specialist 3rd Class Ford Williams/U.S. Navy via AP)

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    Did Trump just draw red line on Syria?

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Did Trump just draw red line on Syria?

CNN's Barbara Starr reports on the White House threat of a "heavy price" to pay if Syria conducts another chemical weapons attack.

Did Trump just draw red line on Syria?

CNN's Barbara Starr reports on the White House threat of a "heavy price" to pay if Syria conducts another chemical weapons attack.