WARWICK, R.I. — The principal of Bishop Hendricken High School has retired after school officials became aware of a brief video that shows him using racist and anti-Semitic language.In an email that went out to Hendricken parents that was obtained by The Journal, the school's president, John A. Jackson, said Principal Joseph Brennan Jr., who has had a 40-year career at the Catholic school, has retired.The eight-second video clip shows Brennan in a school office.