Article Photos: Experts: Ariz. firefighter probe shows GPS need 1/3

FILE - In this Sunday, June 30, 2013, file photo, the Yarnell Hill Fire burns in Glenn Ilah near Yarnell, Ariz. Investigators are set to release a report Saturday, Sept. 28, 2013, on the deaths of 19 elite firefighters in Arizona, nearly three months after the crew became trapped by flames in a brush-choked canyon north of Phoenix. (AP Photo/The Arizona Republic, David Kadlubowski, File)