What is Snowden going to do with Bitcoins in the short term? Spend them on riser cables? Gold bars delivered to his house? Cash them out into fiat through a bank?
Just keep in mind that while you are giving to any Snowden bitcoin address that it is highly unlikely that it will actually aid Snowden in the short term. It is far more likely to be a 'maybe nest egg' for him in the future if he is able to stay free.
Unless, that is, it is coordinated so that he never has the coins at all, but so that they are used as a fund to aid in his legal defense. Meaning, you would need to find for Snowden people on the ground around him who are a) Able to help. b) Willing to help. and c) Willing to accept payment from the Snowden fund in BTC. In this scenario, Snowden would never receive the Bitcoins, nor do I think it would be in any way advantageous for him to access any bitcoins whatsoever while he is currently under the scrutiny of the most powerful intelligence agencies in the history of human existence.
This means that you would be trusting the controllers of the fund with the donated Bitcoins and not Snowden.
Also, anyone who requests that Snowden make any public issue of Bitcoins is being incredibly naive and selfish, IMHO.
Snowden could use Bitcoins right now, stuck in the transit area of the airport. All he needs is an internet connection and access to 3rd party sites like bitspend to take care of his immediate hotel/food/flight needs.
