If there were ever a case for a second passport, the Snowden situation is one. If you have the means to obtain one, now is the time. Doing this is a prudent move - a lifeline if you will. Not only could it possibly prevent you from becoming a stateless person and save your life if your government goes rouge, it opens you up to more opportunity around the world.
You can purchase one for $135,000. This is what Derek Sivers did:
You can purchase one for $135,000. This is what Derek Sivers did:
https://news.ycombinator.com/item?id=3944339
https://sivers.org/comfort
Or, it's likely you are entitled one via ancestry,
http://www.sovereignman.com/lifestyle-design/how-to-obtain-a...
And there's always the old-fashion way through immigration.