Obviously the answer is... (Score 1)

Store your email in another country, encrypted and anonymously. If you have incriminating evidence in your emails, take steps to protect it. It's as simple as that. The majority of people don't talk about bombing important places or laundering money on their gmail accounts. They talk to other people they know about the last football game or when their next date is. If you are talking about your globabl control plans, or ludicrously spamming young men with 'natural male enhancement' ads, use something like snonmail.de to protect yourself.