British Airways has dropped its sponsorship of documentarian Louis Theroux's podcast following an interview with British punk musician Bobby Vylan where the artist defended his chants of “death, death to the IDF” at the Glastonbury music festival.Following the band's Glastonbury performance in June, the two members of Bob Vylan had their US visas revoked by the State Department ahead of a planned tour this month. The BBC also said the livestream of the performance broke its guidelines because