Ex-hostage negotiator explains ‘most dangerous part’ of process - a podcast by Chris Hayes, MSNBC

Guests: Ellison Barber, Dr. Mads Gilbert, Scott Walker, Jonathan Dienst, Hala Gorani, Andrew Exum

Tonight: The Israeli military say they are increasing ground forces in Gaza. New reporting on the potential new phase of war as Gaza faces a near-total internet blackout. Plus, the latest on the manhunt for the man suspected of killing 18 people in Lewiston, Maine. 

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