Islamic State claims responsibility for London subway attack that injured 29; terror threat ‘critical’

Los Angeles Times quoted Erroll Southers of the USC Price School on the recent London subway terrorist attack. “This was an attack on London’s transportation infrastructure, and it doesn’t seem to be an opportunity attack — someone had the time to gather resources and build the device,” said Erroll Southers, director of USC’s Homegrown Violent Extremism…