TSA: new CT scanners may force passengers to check carry-on bags

TSA's expanding use of CT scanners, which have smaller openings than older X-ray machines, may force some passengers to check carry-on bags at the airline counter. Travelers are advised to verify airline size limits and avoid overpacking outer compartments.

• TSA CT scanners have smaller openings than the X-ray machines they replace
• Bags that don't fit the scanner may need to be checked at the airline counter
• On CT lanes laptops, tablets and liquids can stay packed in bags
• Bags must lie flat inside the screening bin