Shannon Eastin breaks NFL's on-field gender barrier
Packers Chargers Football
Line judge Shannon Eastin signals a touchdown during an NFL preseason football game between the San Diego Chargers and the Green Bay Packers, Thursday, Aug. 9, 2012, in San Diego. Eastin is a replacement official making her NFL debut in the exhibition game. The regular officials are locked out by the league after their contract expired. AP Photo/Denis Poroy)