El Paso shooting sparks renewed calls to make domestic terrorism a crime in U.S.

Karen Greenberg at Fordham University says in a politically charged environment like this, the president could choose to designate groups like Antifa and Black Lives Matter as domestic terrorist groups. 

"It's the line between speech and action," said Greenberg, director of Fordham's Center on National Security. "How broad is support for a terrorist group? How do we define it? I think we have to be very careful about that and do it in a responsible way that understands the excesses that occurred in the name of the war on terror."

Read the full article here.

Karen Greenberg