Milwaukee Mitchell introduces 3D security and ID scanners

A state-of-the-art advanced technology Computed Tomography (CT) checkpoint scanner that uses 3-D imaging and seven credential authentication technology (CAT) units are now in use at the Transportation Security Administration checkpoints at the Milwaukee Mitchell International Airport (MKE).

Computed Tomography (CT)

The CT system detects explosives by creating a 3-D image that can be viewed and rotated on three axes for analysis by a TSA officer. If a bag requires further screening, TSA officers will inspect it to ensure that a threat item is not contained inside. 

The 3-D imagery allows TSA officers to manipulate the image on screen to get a better view of a bag’s contents and often clear items without having to open a carry-on bag.

This equipment is similar to that used to scan checked baggage for explosive devices.

Credential Authentication Technology (CAT)

Additionally, seven credential authentication technology (CAT) units are now in use at the airport.

A CAT unit consists of the passport reader, an ID card reader, a Federal personal identity verification ID card reader, a monitor, a stand and a UV light.

This technology enhances detection capabilities for identifying fraudulent documents at the security checkpoint.

CAT units authenticate several thousand types of IDs including passports, military common access cards, retired military ID cards, Department of Homeland Security Trusted Traveler ID cards, uniformed services ID cards, permanent resident cards, U.S. visas, and driver’s licenses and photo IDs issued by state motor vehicle departments.

How it works

  • Passengers hand their ID to the TSA officer at the CAT kiosk.
  • The officer inserts the ID into the scanner for authentication.
  • The kiosk checks the if, for example, a passport has expired.

The CAT unit also checks if the passenger is prescreened to travel out of the airport for a flight that day.

Passengers will not have to hand over their boarding pass (electronic or paper), thus reducing a touchpoint. Instead, they should hold up their boarding pass to the security officer for visual inspection.

Even with TSA’s use of CAT, passengers still need to check-in with their airline in advance and bring their boarding pass to their gate agent to show the airline representative before boarding their flight.

N.B. Image credit: TSA

Internet links

Milwaukee Mitchell International (MKE)


TSA Computed Tomography

TSA Credential Authentication Technology