WASHINGTON, March 23 (UPI) -- Tracking cellphones to determine how long people wait at airport security checkpoints could be an invasion of privacy, U.S. civil liberties experts said.
The U.S. Transportation Security Administration is exploring devices that detect serial numbers broadcast from cellphones and other personal communication equipment. Tracking the information could determine how long people spend in security lines.
The information about wait times then could be posted on Web sites and in airports, TSA spokeswoman Lauren Gaches told USA Today in a story published Tuesday.
Just part of each serial number would be recorded and the numbers then deleted, security officials said.
The American Civil Liberties Union said tracking people's whereabouts carries risks.
"It's serious business when the government begins to get near people's personal-communication devices," ACLU spokesman Jay Stanley said.