Notable passage: "The program was secret until March 8, 1971, when the Citizens' Commission to Investigate the FBI burgled an FBI field office in Media, Pennsylvania, took several dossiers, and exposed the program by passing this material to news agencies."
Most of the various programs involving the CIA spying on, harassing and so-forth Americans have been revealed by either whistle blowers like Edward Snowden or group like the "Citizens' Commission" (basically a group of radicals, not a public organization). Which is to say that a lack of discussion of such activities isn't evidence they are not occurring.