An unidentified FBI Evidence Response Team member examines a bagged piece of debris Saturday at the Hemphill Police Department. Two women who were fishing on Toledo Bend Lake saw the debris drop in front of them. (Star-Telegram / Paul Moseley)An unidentified FBI Evidence Response Team member examines a bagged piece of debris Saturday at the Hemphill Police Department. Two women who were fishing on Toledo Bend Lake saw the debris drop in front of them. (Star-Telegram / Paul Moseley)
A federal investigator, at right, examines a piece from space shuttle Columbia on Texas 96, just north of Bronson in Galveston County. (Star-Telegram / Paul Moseley)