What will post-Brexit immigration look like?

This week, after decades of signing up to the EU policy of free movement of people, Boris Johnson announced Britain will halt low-paid immigration with just a few exceptions at the margins  - and he'll make high-skilled immigration a little easier if you're outside the EU.   The day after the announcement, Gary spoke to Sunder Katwala, director of the think tank British Future, which looks at migration and identity issues, and Eric Kaufmann, Professor of politics at Birkbeck College at University of London, and author of the book, 'Whiteshift'.