From The New York Times: A women’s legal group has filed complaints with the federal education department alleging that 12 school districts nationwide — including New York, Chicago, Clark County, Nev., and Houston — are violating federal law by failing to offer equal opportunities to boys and girls who play high school sports. The group, the National Women’s Law Center, sent the complaints to the education department’s Office for Civil Rights, which is charged with enforcing the federal gender-equity law known as Title IX.