Fetzer has alleged the 9/11 attacks were treasonable, and called for the military overthrow of President George W. Bush. He has asserted that the World Trade Center buildings collapsed by controlled demolitions or by high-tech weaponry, gaining further critical attention. In 2005, with Steven E. Jones, Fetzer co-founded Scholars for 9/11 Truth. Jovan Byford criticized Fetzer's speculations that Jews or Israel were involved in a conspiracy to commit the 9/11 attacks as "a contemporary variant of the old, antisemitic conspiracist canard about the disloyalty of Jews and their usurpation of power in the name of communal interests and the accumulation of wealth."