It's like a movie, a set piece from a show like The Music Man, set right here in Iowa. Pioneer days, 1865: a steam engine belching a plume so thick you can hike on it pulls a string of cars through eastern Iowa's rolling hills. Aboard a flat car sits a church bell, sturdily strapped to prevent carnage.
That bell attracts a crowd, so whenever the engine blasts out a warning to a town down the pike, people gather to gawk--and listen. A whole crowd of rubber-neckers have heard about that bell, so it's rung in every hamlet.