Trains rumble through downtown Milwaukee on a daily basis. Each week, up to 14 of them haul crude oil.
While the city has not experienced any accidents with those tankers, there have been disasters elsewhere, both in the U.S. and Canada.
We wondered, is Milwaukee making progress in protecting the area from a potential accident?
Ask Cheryl Nenn of the group Milwaukee Riverkeeper - her answer is an unequivocal no.