A video allegedly released by the Venezuelan government to scare US Marines was posted to Facebook.
X-51A Warp Speed Ahead
The X-51A Waverider is an unmanned scramjet-powered demonstration aircraft, capable of achieving hypersonic speeds five times the speed of sound. At that speed an aircraft could travel across the U.S. in under an hour. Learn more about how Boeing innovates at http://boeing.com/stories/videos.html