America has reopened its borders to vaccinated travellers, 20 months after they were shut. In that time attempts to cross illegally into the US from the south have soared. Joe Biden promised to undo his predecessor’s immigration policies, but on the ground it appears nothing much has changed. What is happening at America’s border with Mexico?  

The Economist’s Alexandra Suich Bass reports from Arizona. We go back to when a Democratic president talked tough on immigration. And migrant rights activist Gia Del Pino tells us about the families stuck in limbo.  

John Prideaux hosts with Jon Fasman and Charlotte Howard.

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