Assuming there's no known exploit. The NSA might know of an exploit for that algorithm.
Remember, the NSA's mandate is twofold: They are a signals intelligence agency, but they are also charged with protecting government communications, much of which occur with commercially-available cryptography.
RSA does make people nervous for some valid reasons, and that's why there's a gradual transition to ECC underway, but there's little reason to expect a practical attack on RSA at 2048+ bits in the near term.
Absent an operational error on the part of Wired or Snowden, I seriously doubt the NSA will be decrypting that message in Snowden's lifetime, and almost certainly not before changes in the political climate.