Michael Weinberg from Public Knowledge sez "Last week, Rep. Steve Israel introduced a bill designed to regulate firearms that cannot be found by metal detectors. The bill makes a passing reference the 3D printing, which is fine. But the rhetoric that Rep. Israel is using to promote the bill is both muddled and overblown, and focuses almost exclusively on 3D printing. He sent a letter to his fellow Members of Congress titled 'Co-Sponsor Legislation to Ban 3D Printed Guns.' This is a problem."