I refer to the BBC World Service reporting of this story, where a female psychologist explained why Daniel Craig was not attractive to women because touchy-feely. Every single girl I know, even the gay ones, just say 'phwoooar'
You guessed it: sudo rm -rf/*
Sadly, victim count > 0"
Link to Original Source
Naturally, NASA isn't using just any 3D printer to pull this off. It hired Austin, Texas–based Directed Manufacturing to fabricate the injector using a printer that employs selective laser melting to fuse layer after layer of nickel-chromium alloy. Such additive metal-based printers cost tens or hundreds of thousands of dollars.
Of course there is a place for such technology, especially in rapid prototyping, but you are NOT going to get commercial aeroplane turbine blades made like this in your or my lifetimes, not until you can 3D print a single metallic crystal.