How documentaries can change the world. Last year at Sundance I wrote about Kirby Dick's excellent expose on sexual abuse WITHIN the military. The  Invisible War shook up the Pentagon almost immediately when the doc was first released. It is a must see. Today it still is reverberating in Congress. Take a look at this Committee hearing on one of the latest sex abuse scandal by soldiers on soldiers 
http://www.c-span.org/Events/House-Cmte-Investigates-Sexual-Misconduct-at-Lackland-AFB/10737437506-1/