The NYT says it's a "fine line"

> But the government does not deny it routinely spies to advance American economic advantage, which is part of its broad definition of how it protects American national security. In short, the officials say, while the N.S.A. cannot spy on Airbus and give the results to Boeing, it is free to spy on European or Asian trade negotiators and use the results to help American trade officials — and, by extension, the American industries and workers they are trying to bolster.

http://www.nytimes.com/2014/05/21/business/us-snooping-on-co...