Police in Belfast are investigating a photo posted to social media on Monday in which a group of masked men yielding baseball bats, axes and stakes stand before a wall of graffiti that threatens to crucify Catholics. “Taigs will be crucified,” the shocking message reads, using a derogatory term for Irish Catholics. The letters “VTOT” are written below, with a cross. They are believed to stand for “Village Team on Tour,” the name of a loyalist gang in South Belfast. The graffiti was discovered on Monday, when the photo was first shared on social media. It has been widely viewed...