The Institute analyzed 1930s American right-wing radio agitators in detail.

Evidence

It was intended that this should expose the decisive stimuli to which the destructive tendencies in the masses responded. This research was to be carried out principally by Adorno. When Lowenthal spent a few months in the summer of 1943 in Los Angeles he also assisted Adorno with it. The preliminary results of this second area of study were three analyses: one by Lowenthal on George Allison Phelps, one by Massing on Joseph E. McWilliams, and one by Adorno on Martin Luther Thomas. — Rolf Wiggershaus, The Frankfurt School, 1512