CNN Erin Burnett OutFront April 16, 2015 23:43:00
Norad says such things are very difficult for traditional radar systems to detect so washington has been experimenting with a system called j lens, it uses some large, tethered blimps and a different type of radar which might be able to spot something like this gyro copter but its not in place yet, so the concern remains that at the moment theres a big crack in d.c.s protective wall and it needs to be fixed. erin? >> it is stunning. all right, thank you very much tom. "out front" now, former ass...
Source: archive.org