Poison DustPoison Dust is a 2005 American documentary film starring Ramsey Clark, Juan Gonzalez, Rosalie Bertell, Helen Caldicott, Michio Kaku and directed by Sue Harris.OverviewThe film is a documentary about U.S. soldiers returning from Iraq who had been exposed to radioactive dust from dirty bombs when artillery shells coated with depleted uranium or DU are fired. Many suffer mysterious illnesses and have children with birth defects.