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These days, it appears that there are few things that Man can do, that a machine could not do as well, or even better. This apparently includes engaging in warfare.

Certainly, defense is an area where no expense is spared in developing the latest technology and improving performance, but sometimes constructing advanced weaponry can take a very long time. For example, the F-22 Raptor fighter jet was the most technologically advanced fighter ever created, designed back in 1983 to give the US military a tactical edge in the Cold War, but it took 22 years – and $39 billion – before it was delivered, 14 years after the fall of the Soviet Union.
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Transplantation of body parts may soon become a thing of the past: We’ll either regrow them or we’ll PRINT them.

The idea of printing organs has moved beyond science fiction, as the technology of three-dimensional printing (in which layers of material are laid down one at a time to create a solid object) has improved.

Although they can’t yet print transplantable organs, researchers have used the technique to build layers of cells into living tissues. These tissues can be used to test drugs (instead of using animals–or even humans).
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