The original content of Democracy Now! Headlines appears under the Creative Commons BY-NC-ND 3.0 License (United States). For more, including their other shows and media, visit www.democracynow.org. April 7, 2015 Transportation Safety Board Calls for Changes to Oil Tank Cars --------------------------------------------------------------- The U.S. National Transportation Safety Board has called for urgent steps to prevent oil train explosions, including the retrofitting or replacing of tank cars over the next five years. A series of explosions in the United States and Canada have highlighted the risks posed by the so-called bomb trains. The Obama administration is expected to release new rules for oil tank cars next month. .