There might be a new luggage-scanning technology on the way that heightens security and speeds up the screening lines. The Transportation Security Administration (TSA) and American Airlines began testing the use of more advanced scanners that could also allow travelers to keep at all times liquids and laptops in carry-on luggage. Currently, in standard checkpoint lanes, laptops have to be removed from the bags for separate screening.A new CT scanner for better screening of carry-on bagsThe computed tomography scanner, also known as a CT scanner, is not only able to look through your luggage for contraband and dangerous devices such as bombs and weapons, but it can also create a 3D view thus allowing security personnel to rotate the image to every possible angle.For over a decade, the TSA has used these CT scanners to check bags. But nowadays, the machines are considered too big and clamorous to use in the terminal screening areas where carry-on bags are examined.Based on this, the TSA and American Airlines began testing the use of smaller, more advanced CT scanners for carry-on luggage. The first test was done at a single checkpoint lane at Phoenix International Airport. It began on Thursday and will continue indefinitely, with further tests at other airports likely to follow.