If @ProtonMail is incorporated in California, even though there may be other international incorporated pieces of the company, and that's where at least some of the employees are located, why do they think the server location of Switzerland matters? To me the ProtonMail situation is different from some of their competitors, such as @Tutanota, where all of their employees and servers are located together in Germany. If the FBI shows up in California with a subpoena or some other legitimate order to do something, what happens next? The following is a quote from a lawyer that has not spent a lot of time researching ProntonMail's specific situation. I intend for the quote to be used to help get the discussion going and generate additional questions.