In any large organization you'll see instances of departments clashing over projects, managers going over each others' heads and bureaucratic turf wars. I'm sure these disputes are at least as common inside the NSA, or between different branches of US intelligence, as they are between the US and its allies. The difference here is that in an international setting, our national ego comes into play and suddenly it's all…
Given the NSA's contradictory mandates to both improve and weaken security, I think you're definitely on to something.