In an interview to air on Sunday, former Labour minister Alan Milburn tells the BBC young people should have a legal guarantee of a job, training or employment support — an "opportunity guarantee" — warning that those who refuse the help could lose benefits, and calling for spending to shift from youth benefits into employment support. His proposals, to be unveiled on Tuesday, are described by Prime Minister Andy Burnham as a "watershed moment", though he declines to commit to accepting them in full, while other parties from the Conservatives to the Greens offer varied responses.