Punkbhoy, I wouldn't go anywhere near any US embassy in any Islamic nation for a couple of weeks right now.... and keep an eye on the news around this latest issue (protests against a badly-made film which many insist insults their religion).
Given that you're more than likely going to be staying in one of the hotels or resorts in Skannes and that the town is a big tourist centre, it's very unlikely that you'd intersect with any of the political trouble that's figured in Tunisia's recent history. Plus, it's a couple of years since the "Arab spring" started in Tunisia and things have settled down significantly since then.
Have a look at the worldnomads.com advice for staying safe in Tunisia for more:
Phil from the safety hub. about 6 years ago