Can lightning strike twice for RLVs?, The Space Review
"In a speech the following day at the conference, [Mike] Griffin said that X-vehicles in general can do several key things essential in aerospace development, including proving out technologies before getting locked into vehicle configurations, determining what the requirements should be for future vehicles, and demonstrating systems engineering. He lamented, though, the lack of X-vehicle development today. "It is a lapse of government science and technology policy at the very top levels that has caused our aggressive pursuit of X-vehicle programs to lapse," he said. "I would do anything to bring it back to the forefront of public thinking."
Keith's note: Gee, Mike ... who was it that killed everything that Craig Steidle wanted to do at NASA? There was certainly a whole lot of x-vehicle type thinking in Steidle's plan. And Steidle's plan was killed so as to create your government-designed "Apollo on Steroids" (your exact words)? Am I missing something? Pot-Kettle-Black, Mike?