President Barack Obama's appointee to head the Office of Information and Regulatory Affairs advocated "cognitive infiltration" of groups that advocate "conspiracy theories" like the ones surrounding 9/11.

Cass Sunstein, a Harvard law professor, co-wrote an academic article entitled "Conspiracy Theories: Causes and Cures," in which he argued that the government should stealthily infiltrate groups that pose alternative theories on historical events via "chat rooms, online social networks, or even real-space groups and attempt to undermine" those groups.