(Fox News) – The Anti-Defamation League has added the “OK” hand gesture, a mass killer’s bowl-style haircut and an anthropomorphic moon wearing sunglasses to its online “Hate on Display” database. The symbols are among 36 new entries in the Jewish civil rights group’s online database of overt symbols of racism and anti-Semitism used by extremists. The New York City-based group launched the database in 2000 to help law enforcement officers, school officials and others recognize signs of extremist activity. It…