Although on the flipside, at least NSA will be able to track the login to that service and possibly be able to figure out where it was stored.
They and/or the FBI are probably already serving NSLs/subpeonas/etc. to determine whether Snowden or his girlfriend have active accounts with any of the major/medium/minor cloud providers.
We could do it for bin Laden because it's bin Laden. I think most people would disapprove of something similar for Snowden (as in : running into a foreign country to take this guy , not kill him). Plus everyone's watching anyways, and the last thing we need to do is vindicate Russia/Venezuela
^ I doubt he would have 4 laptops, nor would they know if he has a bunch of thumbdrives.