As technology advances, so too does terrorists' use of technology to communicate - both to inspire and recruit. The widespread use of technology propagates the persistent terrorist message to attack U.S. interests, whether in the homeland or abroad.

Social media has allowed groups, such as ISIL, to use the Internet to spot and assess potential recruits. With the widespread horizontal distribution of social media, terrorists can identify vulnerable individuals of all ages in the United States - spot, assess, recruit, and radicalize - either to travel or to conduct a homeland attack.

As a communication medium, social media is a critical tool for terror groups to exploit.

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