Should you be able to 3D-print your own gun?

Should you be able to 3D-print your own gun?

The government has tried to stop an activist from publishing instructions to 3D-print a working gun, but he says it’s a free speech issue. Josh Blackman , his lawyer, joins the panel to explain the argument. After 2020, cars won’t have to get any more efficient, and California’s own rules on auto emissions may be […]

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