TAMPA, Fla. -- A Patriot missile with its guidance system and rocket motor was found in a Tampa scrap metal yard, according to authorities. Explosives experts at MacDill Air Force Base were called to the scrap yard on July 11 to identify an odd-looking object in a heap of junk. The experts said the object was a surface-to-air missile, minus its warhead -- so it's harmless. They say it appeared to be a training model, and still had its rocket motor and guidance system. What the experts don't know is how the missile ended up in the scrap yard.