By Thomas Black Bloomberg Jul 18, 2014

Warren Buffett’s Union Tank Car Co., which makes cars that carry crude oil, is urging U.S. regulators to adopt new rules for rail operations in addition to sturdier tank-car standards to improve safety.

[Editor’s Note: Buffet also owns BNSF Railroad.] 

http://www.bloomberg.com/news/2014-07-18/buffett-tank-car-maker-urges-new-rules-include-rail-operations.html