Dynamite (pictured above) in use during the construction of Douglas Dam, a Tennessee hydroelectric dam built in record time in the early 1940s to meet emergency energy needs at the height of World War II. (Public domain photo) Sedona AZ (May 18, 2017) – On May 17, 2017, around 2:15 in the afternoon, two men walked into the Yarnell Sheriff’s substation to report finding a box of dynamite while...