Easier said than done. At least since the Lac Megantic runaway train disaster in Quebec in 2013, there's been a debate raging in out the necessity and safety of goods carried by rail - and the safety of the areas those trains travel through. The knowledge of what's being carried on those trains has been deemed national security.

Here's the wikki entry for that disaster:
https://en.wikipedia.org/wiki/Lac-M%C3%A9gantic_rail_disaster