Well, if that is so, then doesn't it mean that people who have made FoIA requests regarding what information the TSA/Customs/etc. has on them, effects CBP decision (perhaps negatively) on wheather to grant GE membership to an applicant or not? Otherwise, why would the CBP have such "reports" on FoIA requests, if they do not care anyway?

Isn't this inherently against the sprit of the FoIA to begin with? Here is a link to a government website that has a video on it, where a lady describes FoIA like this: "The Congress, the President and the Supreme Court have all recognized that FoIA is a vital part of our democracy". http://www.foia.gov/about.html