Rather than the original text, this is an update, summary, illustrated study aid, and expansion book--a form of learning efficiency on <i>The Day After Roswell </i>by Philip Corso. It is not a replacement. The Roswell crash not only happened, but we also appropriated sophisticated alien technology-- and kept it secret. Because of our government&rsquo;s nondisclosure of UFO facts, Corso&rsquo;s intriguing story would be representative of one of the most important realizations--and biggest coverups-- in all of history. His story is logical and embedded with impressive detail. Senators, generals, a secretary of defense, a pope, and a president, were all among the colonel&#39;s contacts, and none of them came forward to challenge his claims in his <i>New York Times </i>Best Seller--the only book about UFOs ever to make the <i>New York Times</i> Best Seller list.<br /><br />With his web of important connections in the Pentagon and military, quiet and reserved Colonel Corso morphed into the ultimate insider&rsquo;s insider.<br /><br />Philip Corso matured into a decorated, trustworthy, and dedicated military man. He advanced to be one of the top intelligence officers in the Army in research and design of &ldquo;foreign technology&rdquo; at the Pentagon&mdash;a broad classification which would include UFOs. &nbsp;According to publisher Simon and Schuster, Corso served four years on President Eisenhower&rsquo;s National Security Council, a person of exceptional prominence in the national archives in St. Louis, Missouri.<br /><br />Colonel Corso felt obligated in his eighties to pass on to his children, grandchildren, and the rest of the world, some of the details of his most unusual career. Because of the secrecy insisted upon by the military for over seven decades regarding UFOs, Colonel Corso, in a videotaped interview on February 1, 2008, said that, if he did not share it, the story would likely die with him. &nbsp;In the same video, his son said his father shared only about 10% of what he knew in his best-selling book, <i>The Day After Roswell</i>. The rest remained buried under a &ldquo;top secret&rdquo; classification. His shocking UFO classic, with a foreword by Senator Strom Thurmond, whom Corso worked for as an aide after his military career, shares enough to persuade even the most stubborn skeptic that UFOs are not only a reality but that aliens proved themselves to be an existential threat.