The most effective case-builders I have read (see below) assert that they already have.
Think, “Money talks. B*t walks.” Eyeball that eyeball on the top of that pyramid on the green side of any dollar bill in you wallet. Recall that President Truman told interviewers several months after he signed the National Security Act of 1947 that it was the “biggest mistake he ever made.”
Study history. Particularly the history of American Civil War & Reconstruction, the ensuing “manifest destiny” movement fueled by the railroads and real estate interests, the “gilded age” of the “robber barons” and their “trusts,” the Spanish-American War and the rise of the military-industrial complex, Wall Street’s push-back against entering World War I & II until the other combatants had at least partially burned themselves out, who gained from that, and from the four major assassinations of the 1960s, the Vietnam War as a means of “paying it forward” for Wall Street lenders in cahoots with the big arms manufacturers, Nixon’s “southern strategy” on the back of Johnson’s break-up of the “solid south,” the CIA’s October surprise in Iran – and who it benefited, who Reagan assassin John Hinckley’s father was, three generations of the Bush family (including grampa Prescott) and the national security establishment, the North American Free Trade Agreement, the deregulation of the banking system and the crash of 2008, etc., etc., etc.
I don’t know if it’s all “true.” I just know it all makes sense.
And the conspiracy theorists who make the most sense to me are not the fast-buck emotion manipulators, they’re the truly reputable investigative journalists and plodding college professors. Like Hanna Arendt, S. E. Asch, Kai Bird, Allan Bloom, James Bradley, Martin Buber, Robert Caro, Robert Cialdini, Charles Cooley, Arthur Deikman, Sally Denton, G. William Domhoff, James W. Douglass, Emile Durkheim, Jacques Ellul, Stewart Ewen, Christopher Hayes, Chris Hedges, Jules Henry, Warren Hinckle & William Turner, Eric Hoffer, Sidney Hook, Aldous Huxley, Lynn Joiner, Jeffrey Klaehn, Christopher Lasch, Jackson Lears, Robert Lifton, Alfred McCoy, Stanley Milgram, C. Wright Mills… and that’s just going halfway through the alphabet.