STEALTH NTR POWERED VENTURE STAR IS FLYING OUT OF AREA-51 NOW

The timeline supports this contention. The X-33 was being developed in the late 90's and was cancelled supposedly because American engineers could not build a fuel tank. Project Prometheus and the construction of the new hangar at AREA-51 all line up to show that the US is launching a Stealth-NTR-SSTO.

https://en.wikipedia.org/wiki/Project_Prometheus

THE SR-71 WAS ARMED WITH A MEGAWATT LASER

Dr. Russell Targ, who worked for Lockheed Martin in the early 1960's, developed a Megawatt Carbon Dioxide Laser, pictured above, this laser was the armament for the SR-71. This laser at one meter square was considerably more compact than lasers with similar reported wattage.

The Soviet attempt at an SDI system, shot down mid launch by American space based lasers, was also reportedly a one megawatt laser.
https://en.wikipedia.org/wiki/Polyus_(spacecraft)