Four-thirty in the afternoon on July, 28, 1932, Pennsylvania Avenue in Washington, D.C., was embalmed with tear gas. Herbert Hoover instructed General MacArthur to lead 600 troops from the 16th Brigade into the streets to diffuse the “Bonus Army” riots. The first riot resulted in the death of one Bonus Marcher killed by police gunfire. After catching wind of the incident, President Hoover...