A single wink is not sexual harrassment. That's a ridiculous notion.
What has happened to us in America that people would actually justify the retaliation against a passenger for a harmless non-verbal gesture? Some of my fellow posters here seem to equate a wink with "the finger."
I recommend a TS&S Forum field trip to CDG. More than once I have had very lovely women security agents start to flirt with me, especially at the gate. Personally, I was flattered.