When I was 12, at a church camp thing, we had a camp fire one night, and I was bored and sitting on the outside of the group. I sort of slinked off a few extra feet to do some star gazing. After a bit I notice what SEEMED to be a very large black triangle shaped thing flying slow with the front edges lined with about 8 white lights, other than that I couldn't make out anything on it except black. I was kinds shocked and scared and didn't tell others in the group to look, I don't know why.
One of my best friends travels from Des Moines, Iowa to Omaha, Nebraska many, many times for family. He has seen black triangles many time on that trip, once with heli's chasing it. Last time, he even pulled over and he wife confirmed what he saw.
A couple weeks after that, I was out in the country at a good friend's place and we were discussing flying objects... looked up and saw very small lights in the shape of a triangle, seemingly very high and very fast. After researching THAT one, we discovered it is a grouping of satelites designed to triangulate information for accuracy [like how our GPS's contact several satelites for verification] and that has been seen by many.
After researching, we've discovered the "Black Triangle" things are seen worldwide and prsumed to be USA military though of course they would never fess up. Possibly black, night traveling airships since they are seen on clear, low wind evenings, and sometimes accompanied by escort helis.
In ANY case, I still say, if the Military doesn't claim them, and WE know they are not OUR aircrafts, it could be a threat and to shoot at them. THAT would get the military talking pretty quick