The American Recovery and Reinvestment Act will continue to fund more airport security measures. On Friday, Department of Homeland Security Secretary Janet Napolitano announced that 28 more advanced imaging technology systems will be added to U.S. airports.

“Through the Recovery Act, we are able to continue our accelerated deployment of enhanced technology as part of our layered approach to security at airports nationwide,” Napolitano said.

At the beginning of March, Napolitano announced AIT systems were going to be added to 11 airports. Right now. there are 58 units across the country. Starting this summer, some of these airports are getting additional machines and some new airports are getting their first AIT unit. A complete list of airports can be found here.

Ensuring privacy is a priority of TSA. The images are deleted right after they are viewed, and the TSA official viewing them will be doing so in a remote location. A filter is applied to the images to have a blurring effect for additional privacy.

Napolitano said, “Deploying advanced imaging technology at these airports strengthens our ability to protect the traveling public in the face of evolving threats to aviation security.”