The appearance of Michael Gove on Dateline London earlier today immediately promoted that programme to the first rank of news and current affairs analysis.
Mr Gove advised us that Sir Vince Cable (former LibDem MP and Minister) had written an article critical of free movement.
You can read the article on the New Statesman website: http://www.newstatesman.com/politics/uk/2017/01/why-its-time-end-eu-free-movement
When even fanatics such as Vince Cable (and he is a fanatic, for all his measured delivery) abandon their commitment to free movement you know the game is up for the pro-immigration ideologues.
Since the 1960s the left has used immigration as a way of diluting the British nation state, with the aim of destroying that nation state. But the British nation state has proved to be too resilient. As a Powellite Conservative it is a sweet moment when even fanatics such as Vince Cable are indulging in self-criticism.