TSA revises security measures for elderly A Transportation Security Administration (TSA) agent begins pat down search at Denver International Airport less than a week away from the Thanksgiving holiday on November 19, 2010 in Denver. WASHINGTON, March 15 (UPI) -- The U.S. Transportation Security Administration said it will test letting older airline passengers keep their shoes and jackets on when going through security. The changes, which go into effect Monday at four airports, will reduce but not eliminate the possibility of pat-downs for air travelers who are at least 75 years old, USA Today reported. The changes will be implemented at Chicago's O'Hare International Airport and airports in Denver, Orlando, Fla., and Portland, Ore., TSA officials said. If an alarm sounds, elderly passengers may be asked to remove their shoes. Passengers who can stand still for 5 seconds can opt for a full-body scan. Elderly passengers will be allowed a second chance if a full-body scanner indicates anything suspicious, USA Today said. The agency came under fire in November after two elderly women said they were essentially strip-searched at John F. Kennedy International Airport in New York. One woman said she had to remove a brace for an X-ray scan and the other said she had to lowered her sweat pants so screeners could examine her colostomy bag. TSA officials have denied asking anyone to remove their clothes, but did issue an apology and said security officers would receive refresher training on how to screen passengers with disabilities or medical conditions respectfully. The changes are part of the TSA strategy of focusing more on potentially riskier passengers. The agency has eased screening for children, frequent fliers at specific airports who voluntarily provide background information under the "pre-check" program and pilots in uniform at certain airports.