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Associated Press
FILE - In this Jan. 27, 2015 file photo, House Homeland Security Committee Chairman Rep. Mike McCaul, R-Texas, emerges from a closed-door Republican strategy session on Capitol Hill in Washington. McCaul's book, "Failures of Imagination: The Deadliest Threats to Our Homeland _and How to Thwart Them," will be published Jan. 12 by Crown Forum, the publisher said Wednesday, Sept. 2. (AP Photo/J. Scott Applewhite, File)

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