NTSB Chair Deborah Hersman

Transport Canada jumped past U.S. DOT on April 23 by taking decisive action on "exploding" oil tank cars that are traveling throughout North America due largely to an insufficient oil pipeline network. Within three years, the older cars must go.
Apr 25, 2014   The Olympian
Deborah Hersman, chair of the National Transportation Safety Board, an independent federal agency that investigates crashes in all modes of transportation, particularly aviation, is leading the list of replacements for Transpo Secretary LaHood.
Feb 9, 2013   The Wall Street Journal - U.S. News