Rio Linda High School students Tiffinnie McHenry, left, and Annique Barber wear T-shirts promoting the Day of Silence while other students wear shirts and display signs protesting the national day of campus activism organized by the Gay, Lesbian and Straight Education Network. Participating students take a daylong vow of silence to raise awareness of the harassment and bullying that many gay teens face. A handful of students were suspended from Rio Linda High School on Wednesday for refusing to take off anti-gay T-shirts that administrators said were inappropriate. The shirts, which the students wore in protest of the Day...