(Reuters) It turns out all those years Russian leader Vladimir Putin was cavorting bare-chested outdoors, demonstrating his judo skills and darting whales, a Pentagon researcher may have been studying him for clues to his behavior.

The Office of Net Assessments, a sort of internal think tank for the U.S. secretary of defense, has spent $300,000 annually since 2009 for research to study the body language and movement patterns of key global leaders, one of them being Putin, who has served as Russia’s president and prime minister.

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