National Transportation Safety Board Chairman Deborah Hersman, center, details the aviation accident on Tuesday, Aug. 10, 2010 in Anchorage.  The plane crash took the lives of five people including former U.S. Senator Ted Stevens on August 9, 2010 near Dillingham, Alaska.  With Hersman are from left,  McHugh Pierre of the State of Alaska Department of Military and Veteran Affairs,  Colonel Audie Holloway of the Alaska State Troopers and NTSB Investigator Clint Johnson.   ( AP Photo/Michael DInneen)

Photo by: Michael Dinneen

National Transportation Safety Board Chairman Deborah Hersman, center, details the aviation accident on Tuesday, Aug. 10, 2010 in Anchorage. The plane crash took the lives of five people including former U.S. Senator Ted Stevens on August 9, 2010 near Dillingham, Alaska. With Hersman are from left, McHugh Pierre of the State of Alaska Department of Military and Veteran Affairs, Colonel Audie Holloway of the Alaska State Troopers and NTSB Investigator Clint Johnson. ( AP Photo/Michael DInneen)