CNN CNN Newsroom August 16, 2013 13:42:00
Not just possibly real experimental aircraft and flocks of birds and balloons and just regular airplanes and when you go out there, i go out to the desert. when you go out there at dusk, it's spooky and you can see a long way and things reflect high in the atmosphere like birds, for example. it's hard to tell what's going on at dusk. you can imagine all the experimental test flights that are going on out there and people seeing things, but what are they seeing? so, again, if it's not clear what it is, we're not comfortable with just saying, i don't know and leave it at that. we have to fill it...