Belfast boxer Michael Conlan says sorry for his controversial ring walk to pro-IRA song. But should he have to apologise?

Belfast boxer Michael Conlan has apologised to "the people he offended" by a ring entrance song which contained lyrics supporting the IRA. He was criticised after the Wolfe Tones' Celtic Symphony, which includes the line "Up the Ra", was played before his St Patrick's Day bout in New York. Stephen spoke to commentator Phil Kelly and we took your calls.