“At the conclusion of a 2011 meeting in the Capitol building with a U.S. Senator and an agency Under Secretary, Lacatski, the only one of this book’s authors present, posed a question. He stated that the United States was in possession of a craft of unknown origin and had successfully gained access to its interior. This craft had a streamlined configuration suitable for aerodynamic flight but no intakes, exhaust, wings, or control surfaces. In fact, it appeared not to have an engine, fuel tanks, or fuel. Lacatski asked: What was the purpose of this craft? Was it a life-support craft useful only for atmospheric reentry or what? If it was a spacecraft, then how did it operate?"