https://phys.org/news/2018-05-california-court-defendants-social-media.html > Specifically, the high court rejected an appellate court's ruling that providers were barred from disclosing communications that were set by the user to be public, and that remained public at the time defendants issued subpoenas to the companies. > The case has pitted some of Silicon Valley's biggest companies against public defenders, who say they need equal access to mount a proper defense. Attorneys for the companies have argued that defendants have other ways to get the material.