Yes, it was the airborne laser project, I worked on it at the very beginning. It was very promising but it was finally killed by 0bama.
Boost phase kill is best, slow, predictable path, lots of fuel to blow up. Only time you can keep the beam on target for any length of time long enough to matter. Nice clear air up high.
Lasers are all about dwell time, a fact that escapes the Popular Mechanix crowd that see it as an instantaneous death ray.