Commander of an Air Force base to provide a UFO investigative capability and for Air Force Systems Command to continue Project Blue Book (Atch 4). In response to this regulation most Commanders have appointed a UFO investigating officer, usually as an additional duty. Project Blue Book has two officers, one NCO and one civilian assigned on a full-time basis. In addition, Dr. A. J. Hynek served as a scientific consultant until 1 July 1969.

2. In 1966 the Air Force Office of Scientific Research contracted to have the University of Colorado conduct an independent scientific investigation of unidentified flying objects. This study, directed by Dr. Edward U. Condon and made available as the "Scientific Study of Unidentified Flying Objects," serves as a basis for evaluating the Air Force investigative(CNN) — Wandering around the grounds of Hikone Castle by Lake Biwa, in central Japan , the scene looks like something straight out of a postcard.

Known as the "Water Castle," the complex features towering stone walls, romantic sakura blossoms, trick doors to confuse enemies, and steep stairways leading up to wooden keeps where travelers stop to admire panoramic views of the lake below.

But there's much more to this story than just pretty scenery.

In her new book "Samurai Castles," author Dr. Jennifer Mitchelhill and photographer David Green spent over three years documenting 24 of Japan's samurai-era castles.

The idea? To understand the aesthetic details, cultural values and historic happenings surrounding these architectural marvels.

An architectural historian at the University of Melbourne, Australia, Mitchelhill has bounced in and out of Japan for