During
World War I, the Wilson administration targeted dissenters and critics of
America's war policy and in many cases jailed and deported them. Even
suggesting that someone shouldn't register for the draft was enough to warrant
an investigation and possible arrest. It was also a time of vigilante groups,
and unofficial 'shadow' units within police and sheriff's departments. Groups
like the American Legion also played a part in pursuing and harassing critics
of the war.