Can anyone take on Putin and survive?

Alexei Navalny had a vision of a democratic Russia and he was a constant thorn in the side of the Russian president.   So, now the leading Russian opposition figure has died in prison, who will take on Vladimir Putin?  We’ll hear why it could be Navalny’s wife who steps into the fray.  Featured:  Rajan Menon, Director of the Grand Strategy program at Defense Priorities think tank