Russian opposition group report says it's identified another superyacht belonging to Vladimir Putin

• A Russian military plant built Vladimir Putin a 71-meter superyacht, according to a new report.
• The report was written by the Dossier Center, a Russian opposition group funded by an exiled oligarch.
• Putin's rumored mistress often uses the yacht on vacation, according to the report.

Vladimir Putin's newest known superyacht is 71 meters long, cost an estimated $50 million to build, and can carry up to 28 people, according to a new report from Russian opposition group the Dossier Center.