BARABOO, Wis. — A Wisconsin school district is investigating a photo of a group of high school boys giving what appears to be a Nazi salute. Baraboo Superintendent Lori Mueller said she became aware of the photo Monday after it was posted on social media. The photo of more than 60 male students dressed in suits, some wearing boutonnieres, shows many with their right arm extended upward while posed on the steps of the Sauk County Courthouse.