BLITZER: Checkpoints, heavy weapons and counterterrorism teams are not what you would expect to see on New York's Fifth Avenue. But with President-elect Donald Trump ensconced in Trump Tower, parts of the famous thoroughfare now a heavily fortified security zone. CNN's Jessica Schneider is on the scene for us. Jessica, New York's mayor is urging people to what, avoid the area? Is that right?</s>JESSICA SCHNEIDER, CNN CORRESPONDENT: Yes, that is right, Wolf, you know? But, of course, this is the epicenter of holiday activities here in New York, so that in itself is quite a tall order. So, now, the NYPD is working with the Secret Service to maintain that balance between security and keeping the traffic flowing out here on Fifth Avenue. It's quite an undertaking. In fact, it's an unprecedented challenge out here. The goal is to actually secure all 58 stories of Trump Tower, as well as the area surrounding it. So, to do that, the FAA has instituted a no fly zone. In addition, there's 24-hour coverage of heavy weapons teams, critical response teams, as well as counterterrorism teams. And all of that are being down around the clock out here. Now, in addition, if people want to go inside Trump Tower, because, after all, it is still a public space, they do have to be screened. Officers are also on elevated perches out here, on rooftops, keeping an eye on this area to keep it safe. Mr. Bill de Blasio talks about the difficulty in securing this area but he also talked about the city's commitment to maintaining the security around this area. He said it will remain safe. Parts of Fifth Avenue, several lanes are close out here. But Mayor De Blasio also said that they will be talking with the federal government to actually see if they can get partial reimbursement for some of the overtime out here because it is a huge undertaking -- Wolf.</s>BLITZER: All right. Jessica, thanks very much. And this Christmas season is just getting ready. That's it for me. Thanks for watching. "ERIN BURNETT OUTFRONT" starts right now.
New York Fortifying Fifth Avenue to Protect.