How valuable is the information on your laptop to the NSA? If it's under $100k you're probably ok doing what Stallman does https://stallman.org/stallman-computing.html . If you have information worth over $5M to the NSA, then you better get physical security personnel as well as network and hardware security personnel; maybe ally yourself with a different powerful state or corporate actor. In other words you need to make their expected cost of getting that information significantly higher than it's worth.