Under the glare of the Government, the future of the BBC is once again up for debate. One option is to shrink and concentrate on public-service broadcasting. But, says a professor of journalism, that commitment needs first to be questioned and challenged I  woke up on Friday morning last week to a text from a Norwegian journalist asking if everyone in Britain thought that Culture Secretary John Whittingdale has been too easy on the BBC in his Green Paper – a document he introduced by saying the time was right to question whether its range of services best serves licence-fee payers, and whether it can be all things to all people. The BBC certainly does not think Whittingdale has been too easy on the corporation; it has gone into battle mode, with its director-general Lord (Tony