It is the first and only all-male public high school in the United States.
And the African-American boys there, most from low income families, cannot get suspended, no matter what they do. After the first year, the high school, in Washington DC, has a waiting list. Here's the USA Today story on the school.
The boys wear uniforms, work out behavior in class circles, and their learning and GPA goes up. Naturally the ACLU, instead of a court case against schools for gender bias against boys, is arguing in court that helping low achieving African American males is against the law.