A teacher in the US state of Georgia has been suspended after allowing students to dress in mock Ku Klux Klan robes for a project.
The teacher had asked four students, none of whom were black, to re-enact scenes from history for a class film.
Officials said the teacher had used poor judgement. Georgia has a history of violent racial tension and students and parents were upset by the incident.
The teacher, who is white, acknowledged it was a mistake to film the scene.
And if one of the students had been black?