Basically, the French government selectively leaked to a New Zealand journalist, to justify retaliation (tariffs at the EU level, which never materialized) against the US government for burning their Saudi deal.

There has never been any credible evidence that US intelligence agencies pass trade secrets to American companies.

http://en.wikipedia.org/wiki/Enercon#Patent_dispute "the patent in question was registered in 1991, three years before the alleged espionage event"