https://www.cnbc.com/2018/08/01/judge-blocks-release-of-blueprints-for-3d-printed-guns.html

A federal judge on Tuesday stopped the release of blueprints to make untraceable and undetectable 3D-printed plastic guns as President Donald Trump questioned whether his administration should have agreed to allow the plans to be posted online.

The company behind the plans, Austin, Texas-based Defense Distributed, had reached a settlement with the federal government in June allowing it to make the plans for the guns available for download on Wednesday.