Will the UK-France migration deal work - explained

Keir Starmer and Emmanuel Macron have announced a "one in, one out" migration deal which would see France send one asylum seeker with a British family connection to the UK for every migrant sent back.Under the terms of the deal, up to 50 people a week could be sent back to France.But what impact will the new deal really have?In today's episode of the Fourcast, Senior Political Correspondent Paul McNamara speaks to Charlotte Khan from Care4Calais and Peter Walsh, senior researcher at the Migration Observatory, about whether we can really expect to see a change to the number of people crossing the English Channel by small boat.