What the public assumes he means:
- "Three letter agencies and the military won't be conducting clandestine operations to proactively seek out and remove Snowden from a foreign country."
What he actually means:
- Quite literally, he's saying that they won't be sending fighter jets to go blow up Snowden. Of course that would be silly and not make any sense whatsoever, but it doesn't change the fact that this is what he was referring to.