The Department of Homeland Security, at the urging of Congress, is building tools to more aggressively examine the social media accounts of all visa applicants and those seeking asylum or refugee status in the United States for possible ties to terrorist organizations.

Posts on Twitter, Facebook and other social media can reveal a wealth of information that can be used to identify potential terrorists, but experts say the department faces an array of technical, logistical and language barriers in trying to analyze the millions of records generated every day.

After the December mass shooting in San Bernardino, Calif., “we saw that our efforts are not as robust as they need to be,” Francis X. Taylor, under secretary for intelligence and analysis, the top counterterrorism official at the Department of Homeland Security, said at a congressional hearing.

Travel industry officials and immigration rights advocates say the new policy carries the peril of making someone who posts legitimate criticism of American foreign policy or who has friends or followers who express sympathy toward terrorists subject to unwarranted scrutiny.

Read More- New York Times

Image courtesy of PBS