Bob Vylan performing on the West Holts Stage during the Glastonbury Festival at Worthy Farm in Somerset on Saturday. Photograph: Yui Mok/PA Wire Glastonbury Festival has said chants about the Israel Defense Forces (IDF) from punk duo Bob Vylan have “crossed the line”, with footage from their set to be assessed by English police. Bobby Vylan led crowds on the festival’s West Holts Stage in chants of “Death, death to the IDF” on Saturday. A member of Belfast rap trio Kneecap later suggested that fans should “start a riot” at his bandmate’s upcoming court appearance. In a joint Instagram post,...