Many States Hide Rail Hazmat Threats From Public at Companies' Behest [1]
It's not like you can't figure these things out. Trains full of explosive crude oil, for example, may be obvious as a string of 100-odd identical black tankers rolls through populated areas. The number on the DOT-required diamond-shaped flammability placard on each car probably has the number 1257 on it. But it's not just crude oil that's an issue.