In this Nov. 16, 2017 photo, Robert Simpson, right, and his son Brad, owners of Simpson Ltd., a collector gun shop in Galesburg, Ill., pose with the book they respectively compiled and published, "Training Rifles of Third Reich Germany." Besides being a book for gun collectors, the book contains original research about a program the Nazis started after Hitler came to power to train German men for war.(Rebecca Susmarski/The Register-Mail, via AP)/
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