This time from US Travel Association:
https://www.ustravel.org/system/file...y_Airports.pdf
Research found that travelers would take between two and three more trips per year if TSA hassles could be reduced without compromising security effectiveness
Inadequate communication surrounding screening instructions... lead to unnecessary confusion and frustration among tens of millions of American travelers
If I am not mistaken, these numbers are far below what TSA claims to be true:
Approximately 3.5 million travelers are enrolled in TSA PreCheck, and an additional 2 million travelers enjoy TSA PreCheck benefits via their enrollment in the U.S. Customs and Border Protection’s (CBP) Global Entry program.