Russian president Vladimir Putin was caught chatting with his Chinese counterpart, Xi Jinping — about the light topic of organ transplants, and how they could let "us live younger and younger, and perhaps even achieve immortality."

As ABC News reports, the comments were overheard on a hot mic attached to Putin's interpreter, who was translating his words into Mandarin at a parade in Beijing this week commemorating the end of World War II and showing off fearsome new Chinese military might.

"With continuous advances in biotechnology, human organs will be increasingly transplanted — letting us live younger and younger, and perhaps even achieve immortality," Putin's interpreter said in Mandarin.

"In this century, it's anticipated that it may be possible for people to live to 150 years old,

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