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Preview: John Brennan

Name: Preview: John Brennan
Uploaded: 2016-05-26T16:27:36-0400
Duration: 36 s
Description: In a rare interview, the head of the CIA outlines the threat to America posed by ISIS and discusses other security concerns such as cyber and biological terror. Scott Pelley reports on Sunday, May 29 at 7 p.m. ET/PT.

In a rare interview, the head of the CIA outlines the threat to America posed by ISIS and discusses other security concerns such as cyber and biological terror. Scott Pelley reports on Sunday, May 29 at 7 p.m. ET/PT.