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Melba Kurman

It’s Gunpowder, Not Guns, Lawmakers Should Worry About

With controversy swirling over gun-sale background checks, limiting the size of weapon magazines and retaining Second Amendment rights, the problem of making homemade guns with 3-D printers has become a matter of public concern.

Laws mean little if a determined criminal or a hobbyist teen wants to make plastic guns or extra-high capacity magazines, says Hod Lipson, Cornell University professor of engineering and a pioneer in 3-D printing.… Read the rest