Outcry grows over 3D-printed guns amid lawsuit to block downloads

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Attorney generals in eight states are asking a federal judge to block a Texas man from publishing instructions online on how to make untraceable guns in their homes with 3D printers. "This changes the safety for Americans forever if this is allowed to happen,” said Fred Guttenberg, whose daughter Jaime was killed in the Marjory Stoneman Douglas High School shooting. NBC’s Tom Costello reports for TODAY.