He casts a long shadow over globe. Russian leader Vladimir Putin has outlasted three U.S. presidents and is on track to stay in power until 2024. But a joint investigation by the fifth estate and PBS’ Frontline reveals an even darker side to one of the world’s most powerful leaders: Allegations of criminal activity dating back to his early days as a top official in St. Petersburg; ties to organized crime and money-laundering activities; and a secret personal fortune said to be in the billions.