The Russian leader said that human beings genetically engineered to be ‘immune’ to pain and fear would actually be more dangerous than a nuclear weapon.
Speaking to students at the 19th World Festival of Youth and Students in Sochi, Putin warned of the dangers of ‘playing God’ with the genetic code.
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Putin said: ‘One may imagine that a man can create a man not only theoretically but also practically.
‘He can be a genius mathematician, a brilliant musician or a soldier, a man who can fight without fear, compassion, regret or pain.
The idea is similar to the premise of the classic Jean-Claude Van Damme thriller Universal Soldier.
‘As you understand, humanity can enter, and most likely it will in the near future, a very difficult and very responsible period of its existence.
‘What I have just described might be worse than a nuclear bomb.’
Putin warned that nations would have to agree on ethical regulations around the technology, according to the Express.
He warned: ‘When we do something, whatever we do, I want to reiterate it again — we must never forget about the ethical foundations of our work.’