Margaret Thatcher was one of two great British Prime Ministers in the 20th century (Sir Winston Churchill was the other). Unlike Churchill, whose greatness rests with one particular achievement (victory in the Second World War), Thatcher was a truly transformational figure. Driven by a clearly defined political program that informed virtually all of her policy decisions, she changed first the Conservative Party, and then British society. This political program became known as Thatcherism, and her followers as Thatcherites. Thatcherism and the Thatcherites survived her fall from power in 1990, and continue to dominate the British Conservative party to this day, even as they languish in opposition (more about that in a moment).Ufology has its own Thatcherism. It is embodied not in a single person, but rather a single case.Call it “Roswellism.”Like Thatcher’s impact on British politics and society, Roswell changed Ufology forever, both internally, and in its relationship with the mainstream. Not the actual “incident,” of course, which was ignored for three decades, but the “Case,” as studied and debated since its re-discovery by Stan Friedman in the late 1970s.What is Roswellism? In broad strokes, it is:1. The unequivocal acceptance of the Extraterrestrial Hypothesis (ie. UFOs are alien spacecraft) as true;2. The unequivocal acceptance that alien spacecraft crash landed near Roswell in 1947 (and the resulting acceptance that any other crashed flying saucer story may be true); and3. The unequivocal acceptance that the American government has covered up the truth about 1 and 2 since 1947, in an organized “conspiracy of silence” that represents a “Cosmic Watergate."