Threats of terrorism in the U.S. are 'more diverse and difficult to counter'
The threat of terrorism in the U.S. is "not more potent than it was around 9/11, but it's certainly more diverse and difficult to counter," a researcher says.
The threat of terrorism in the U.S. is "not more potent than it was around 9/11, but it's certainly more diverse and difficult to counter," a researcher says.