Released on October 20, 1999, the report named followers of white supremacy, Christian Identity, the American militia movement, Black Hebrew Israelites, and apocalyptic cults as potential terrorists who might become violent in reaction to the new millennium.

Insight on the News commented, "In a polemic presented as a threat report, the FBI has targeted religious groups and rightwing eccentrics as potential terrorists likely to go postal as the new millennium arrives ...

Even at the height of the Cold War during the 1970s and 1980s the FBI was not allowed to pursue openly declared revolutionary Marxists in this way, being required by the courts to show cause by establishing an actual attempt to commit illegal acts.

"[1] The American Civil Liberties Union cited Project Megiddo in its defense of filmmaker Mike Zieper, whose film about a military takeover of Times Square was removed from the Internet due to FBI pressure.

[3] On January 6, 2000, U.S. Attorney General Janet Reno said in response to a question at a news conference asking why the terrorist acts predicted in the report did not happen:[4] I think that speculation as to why it didn't—it—the nice answer would be that there was no threat.