Can police in Haiti tackle armed gangs?

Police in Haiti have reportedly launched an operation to arrest Jimmy Cherizier - the leader of the coalition of gangs controlling most of the capital, Port au Prince.
Also today: why are French political leaders getting younger?
Today’s guests are the author and historian Shrabani Basu, and Henry Chu, former LA Times editor and bureau chief in Beijing, Rio de Janeiro, New Delhi, London.
PICTURE CREDIT: A street in Haiti's capital, Port-au-Prince / EPA.