Sign up for the MSNBC newsletter

You have been successfully added to our newsletter.

Let our news meet your inbox

Weekends with Alex Witt

San Bernardino attack investigated as terrorism

Don Borelli, former Special Agent in charge for the FBI and NYPD Joint Terrorism Task Force and MSNBC contributor, speaks with Alex Witt about the process for investigating terror and keeping track of seemingly random suspects.

BEST OF MSNBC

Play All