The statement came in a letter to the American Civil Liberties Union chapter in San Francisco, which filed a lawsuit last week demanding that the TSA explain its procedures and policies when searching and scanning electronic devices carried on domestic flights.

Despite the denial from the TSA, the ACLU said it continues to demand that the TSA provide documentation to prove the agency is not scanning electronic devices.

"The public deserves all available information about what is and isn't considered a permissible search by TSA," said Vasudha Talla, staff attorney with the ACLU Foundation of Northern California.