Sure. In the example I discussed of Burlington Northern railroad, we agreed to ship our chlorine with them over a slightly longer route than the normal shortest route possible. The reason we agreed to do that was that it allowed the railway to avoid high-threat urban areas, which is the U.S. description of large cities, and also it allowed them to route our traffic over sections of their track that were already.... I'm trying to come up with the correct technical term.
On May 6th, 2014. See this statement in context.