July 3 (UPI) -- The BBC has apologized for airing Bob Vylan's "offensive" Glastonbury Music Festival set over the weekend and is changing its live-stream protocols in response. Bob Vylan, a British alternative rap duo made up of Bobby Vylan and Bobbie Vylan, chanted "Death, death to the IDF," referring to the Israel Defense Forces, and "Free, free Palestine" on stage Saturday. The performance was live-streamed on BBC, which apologized and called the duo's comments "deeply offensive" and "anti-