What future for the City of London post Brexit?

International banks have used London as a pivot into the European single market, but are likely to lose these so-called "passporting" rights to operate in the EU once Britain is no longer a member. Patrick Jenkins discusses what impact this will have on the City of London with Martin Arnold, the FT's banking editor and Simon Gleeson, a partner at law firm Clifford Chance. Music by Kevin MacLeod.