Dear President Biden: As members of the House Gun Violence Prevention Task Force, we write to urge you to take swift action to prevent the online publication of dangerous files that enable at-home 3D printing of firearms. This issue has become very time sensitive following the April 27 decision by two members of a Ninth Circuit panel which lifted a district court injunction on the finalization of dangerous Trump-era regulations. If that decision is allowed to take effect as written, which could happen within a few weeks of this writing, strong State Department protections against the publication of those files will be lifted, and we could immediately see widespread at-home production of firearms. We urge you to act swiftly to retain the strong State Department controls to avert this potential public safety disaster.