Collateral damage of drones has consequences in the documentary 'National Bird'

For her second feature documentary, "National Bird," director Sonia Kennebeck puts a face on the victims of drone warfare who are both in the United States and abroad. Part of the technology's appeal is the distance -- both physical and emotional -- between the U.S. armed forces and their targets, but the film argues that military personel are affected, even if they are never in the same country as the people considered collateral damage. At the heart of "National Bird" are three whistle-blowers. Heather is a former drone imagery analyst who struggles with PTSD and takes her story to the Guardian. Daniel is a former government contractor and signals intelligence analyst who worries about what he can and cannot share with everyone in his life.