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NY bill would require a criminal history background check for the purchase of a 3D printer
(www.nysenate.gov)
This is a most excellent place for technology news and articles.
Same principle applies to the frequent attempts to ban semi-auto rifles, when rifles account for 3% or less of all homicides annually.
Those kind of weapons are effective for defending / attacking a moderate sized area, unlike pistols and bolt-action rifles. Pistols are short range and bolt-action rifles are slow. It's obviously about the power that they don't want the people to have.