How Russia's billionaire oligarchs became a sanctions target

From chasing yachts in the ocean to seizing Italian villas, the global effort to punish Russian oligarchs for their financial ties to Vladimir Putin's invasion of Ukraine has been unprecedented. The U.S. has arranged its own special task force within the Department of Justice to seize the assets of the oligarchs who try to evade sanctions. However, it's unclear whether Russia's most elite hold enough sway over Putin to prompt an end to the country's ongoing barrage against Ukraine, experts warn.