What the world can learn from Ukraine's fight for democracy | Olesya Khromeychuk

"A flourishing democracy next door is a scary thing for an autocrat," says Ukrainian historian Olesya Khromeychuk. Detailing the history of Ukraine's long struggle for sovereignty and freedom — against Russian tsars, communist dictators and now the Kremlin's army — she shares three lessons anybody can use to join the global fight for democracy.