FILE - In this July 1, 1956, file photo, Palen Hudgin, right, shows his brother, Henry, where the two planes crashed on June 30, 1956 killing 128 people in the Grand Canyon. The crash spurred improvements to the air traffic control and radar systems, and led to the creation of the Federal Aviation Administration. On Tuesday, July 8, 2014, the Grand Canyon National Park will mark the designation of the crash site as a National Historic Landmark in a ceremony overlooking the gorge where the wreckage was scattered over 1.5 square miles. (AP Photo/File)