inflicted civilian deaths here to discuss this with me is jefferson morley writer at salon and author of the forthcoming book snowstorm in august ashington city francis scott key and a forgotten race riot of eight hundred thirty five pacific special joining us tonight. ok so you you know when you write about this you start telling us what it is. like inside that control operating system you know and so how many people are involved right how many screens do we have going how many buttons are there the drone consul operating station is true seats typically there is some variations but the most common model in the air force is two seats a couple of screen several keyboards and various inputs coming in from other sources. so it's a complicated set of. now when we find out from the air force advisory a scientific advisory board and they do this looking at what some of the issues are you know technically they say stands out well they found a lot of flaws this was a study done by the u.s. air force but were done in april two thousand and eleven finished and they had been looking at the the e