Found an international organization that should be doing the work the NSA should be doing: making the world more secure by actively helping secure all hardware and software regardless of origin. Basically help close all the holes the NSA is actively exploiting. Once it is humming along nicely and being productive, I would solicit donations from all the nations that see value in the work being done.
Found another international organization that incubates decentralized technologies that put users in control of their data with the goal of competing with all the centralized walled gardens out there. The world needs more technologies like bittorrent.
With both organizations, I don't think it would make sense to have just one location, I would probably found two larger offices in San Francisco and Berlin first, but then open up additional small offices in other regions where there are a dozen or so capable hackers that want to work together on this kind of stuff full-time.
Next, I would put money into open-source hardware for those areas which are still closed-source threats - CPUs, GPUs and the networking stack. By now the world really should have an entire stack from GUI all the way to every piece of hardware that is open-source and auditable.
Lastly, I would secretly buy up all the parking lots in San Francisco. Once I control most of the market for parking lots in the city, I would shut them all down simultaneously and turn half into public parks and convert the rest into whatever type of development that they are zoned for. It wouldn't be an anti-trust issue because I'd be liquidating my market share. i.e. if I owned 90% of the market and shut down 100% of my stock, I now own 0% of the market. My goal would be to decimate the convenience of driving in the city overnight so that people are forced to consider alternative means of transportation like buses and bicycling.
In fact, with the exception of turning some of the land into public parks, I reckon this last idea could form a very decent investment strategy with some smart hedging, such as buying stock in the companies likely to benefit the most from increased spending on public transportation (city bus manufacturers, subway car manufacturers, etc.). I'm certain there is some investment thesis out there that works when you shut down all the private infrastructure that supports selfish city drivers.