Urban Explorers Are The New Terrorists, Claim Counterterrorism Experts
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Here's the full graphic<br/>
National Counterterrorism Center
Close-up of upper left quadrant<br/>
National Counterterrorism Center
Lower left quadrant<br/>
National Counterterrorism Center
Upper right quadrant<br/>
National Counterterrorism Center
Lower right quadrant <br/>
National Counterterrorism Center