The Kochs, and the justices, may be haunted by what they unleash. When unions' backs are to the wall, they become more militant and look for quick wins. Beyond that, killing agency fees on free-speech grounds could give workers free-speech protection to complain publicly about employers. Former Reagan administration solicitor general Charles Fried warned in an amicus brief that the court risks setting in motion "drastic changes in First Amendment doctrine that essentially threaten to constitutionalize every workplace dispute."