Counter-Terrorism Drills Ramp Up in Wake of San Bernardino Shooting

Officials look to remain sharp in wake of the mass shooting and recent shutdown of California schools.
2:24 | 12/19/15

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Transcript for Counter-Terrorism Drills Ramp Up in Wake of San Bernardino Shooting
Now we move to president Obama's meeting with relatives of the victims in the San Bernardino massacre. The president and first lady Michelle Obama held a private meeting with the families before making their way to Hawaii for the holidays. With that attack fresh on everyone's mind these scene you're seeing playing out in L.A. Looked terrifying, a counterterrorism drill and ABC's kayna Whitworth joins us from L.A. And these exercises are more important, more prominent than ever. Reporter: Paula, they absolutely are and good morning to you. After this drill, the mayor was speaking out saying in part here, that we're not waiting for new threats to train. They want to ensure that we can have peace of mind where we live, where we work hoping for this, but preparing for the worst. Reporter: Overnight president Obama visiting with families of the victims of the San Bernardino terror plot. Despite the pain and the heartache that they're feeling, they could not have been more inspiring. Reporter: The devastation from that attack and the one in Paris fresh in the minds of law enforcement agencies as they carried out massive counterterrorism drys. It certainly is -- it certainly is the current state of events. Reporter: The newly created srg conducted drills of its own, the unit of 800 personnel specializing in everything from crowd control to radiation detection. Officers in L.A. County testing preparedness and force. Are your rigs ready? We're preparing for a paris-type mumbai-style attack where it's coordinated, synchronized, multiple targets. Reporter: An hour after the initial call went out the sheriff's department is here so that completes their tactical operation center. The first thing they'll do is a debrief. Give you the mission for our team in a moment. Reporter: This is the nerve center, the responsibility is regional. Communication is key. Deployments mission specific especially in the scenario practiced here where they have two separate incident points, and active shooters. The ability to have good fluid game plans that can change as you move along important. Exercise, exercise, exercise. Reporter: They will all be deployed to an area near los Angeles international airport. A high-value target with global implications. Call at 1400 right now and we're in motion. Reporter: The LAPD planning to send a team to Paris to meet with authorities there to learn more about preventing terrorist attacks. Dan. Kayna, thank you.

This transcript has been automatically generated and may not be 100% accurate.

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