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Intense investigation focuses on Tennessee shootings and threats inside the U.S.

Name: Intense investigation focuses on Tennessee shootings and threats inside the U.S.
Uploaded: 2015-07-18T07:51:19-0400
Duration: 3 min 24 s
Description: CBS News senior security analyst Juan Zarate joins “CBS This Morning: Saturday” to discuss what investigators are targeting in the wake of the deadly attack on the military servicemen in Chattanooga.

CBS News senior security analyst Juan Zarate joins “CBS This Morning: Saturday” to discuss what investigators are targeting in the wake of the deadly attack on the military servicemen in Chattanooga.