I am against Pre-Check (formerly, Trusted Traveler; always 'Papers, Please!') as a long-term solution to airport security, as I've written about here before. However, the expansion of the program may be a promising sign that public opinion can, and has, affect airport security policy. That is a point also noted in this NY Times editorial about the Pre-Check program.
I do worry that this is an effective ploy to appease enough of the traveling public to allow the TSA to continue to shed our rights. Hopefully, I'm wrong.