Even WIRED magazine was outraged at this bill, reporting:

Senate Wants the Military to Lock You Up Without Trial

…the detention mandate to use indefinite military detention in terrorism cases isn’t limited to foreigners. It’s confusing, because two different sections of the bill seem to contradict each other, but in the judgment of the University of Texas’ Robert Chesney — a nonpartisan authority on military detention — “U.S. citizens are included in the grant of detention authority.”