I know some of the folks from out around Templeton, Iowa. One of the clan was out hunting and found an old rusted out Tommy gun. He told a couple of people about his find and about a week later the FBI knocked on his door. They confiscated the Tommy gun as it was "part of an active investigation".
My mom's side of the family is from the Templeton area...I remember Thanksgivings out on my grandparents' brothers farms when I was a kid where you were not allowed into certain barns...my cousin got a beating for opening the door of one when I was about 10, will never forget that...there were always jokes and vague comments during the card games from the old timers about the contents in those barns...nothing ever confirmed... but for a bunch of farmers, they seemed to take a lot of vacations to nice places over the years...never seemed to have an "off" year either...