Federal prosecutors say 19-year-old Jeremiah Munsen displayed the nooses when he drove past people who had attended a massive civil rights march in Jena on Sept. 20.
Munsen had faced up to a year in prison after pleading guilty in April to a misdemeanor charge of interfering with the marchers' federally protected right to travel.
The marchers were waiting in Alexandria for a bus home to Tennessee. They had been protesting the criminal cases against six black teenagers charged with beating a white student at Jena High School in 2006.
Finally, they do something right.