 In April 2000 White Plume and his family planted industrial hemp on their farm on the Pine Ridge Reservation.He is reportedly the only farmer to date to openly plant, cultivate, and produce cannabis-related crops within the borders of the United States since they were prohibited by federal anti-drug laws in 1968.While hemp products can be sold in the United States, its cultivation is prohibited, a law implemented by the Drug Enforcement Administration (DEA).