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Keir Starmer and French President Emmanuel Macron have announced a ‘one in, one out’ agreement aimed at deterring migrants from crossing the Channel. The UK and France also agreed to coordinate their nuclear weapons for the first time.

Also on the programme: scientists think they've found a new way to reduce hair loss during chemotherapy; and part of the Sycamore Gap tree gets a new life as a work of art. We hear from the artist who created it.