War in Ukraine: Convincing Putin he holds a losing hand

After 10 months of intense fight, the struggle in Ukraine heads into a chilly and darkish New Year. For Ukraine and its president, Volodymyr Zelenskyy, it’s a battle for survival; for Russia and its president, Vladimir Putin, it is a navy debacle. CBS News nationwide safety correspondent David Martin talks with navy scholar Fred Kagan in regards to the prospects of Russia breaking the Ukrainians’ will to battle as Putin assaults their cities and power grid.