Not only are they projecting states -- but they're projecting people. As in holograms.
As Yellin explained to Blitzer, "There are 35 different high definition cameras 'ringing' me. I'm in the center and they shoot my body at different angles and I'm told that's transmits what looks like an entire body image back to New York."
Whatever it does, she looks like Princess Leia. It's cool stuff. Check it out.