The news story at Human Events starts this way:
“Three-D metal printers make guns that look and function in exactly the same way as any metal gun would,” said John Richard Lott Jr., founder and president of the Crime Prevention Research Center, a research and education organization that studies the relationship between laws regulating the ownership or use of guns, crime, and public safety.
Proposed laws that seek to regulate the purchase of 3-D printers will have an opposite impact on violent crimes just as gun bans or background checks do, said Lott. “It is already very difficult to stop criminals from getting a particular gun to use, it is simply impossible to try and stop them from printing-off their own gun.”
Gun control laws mostly protects criminals and penalizes law-abiding citizens, he said. “We have good citizens turning in their guns that are now illegal, but not the criminals.” . . .