Right now, I am not in Thailand but I was there when the big trouble happened in 2010. Generally, I assess the situation as ok for tourists as long as you follow some precautions. Stay away from crowded places, inform yourself (at the hotel reception, from TV...) what's going on and avoid the areas indicated. If you find yourself in a protest area (things like this can happen), don't be nosy and look what's going on - get away into a calm area. Outside Bangkok, you should (as per now) not have troubles but if you see some crowds - as I said before - go away. Up to today, I did not hear about any unrest in the North so far, so you should be safe there. Hope this helps! Thailand is a very beautiful country and if you manage to avoid the few hotspots (well, as I know from here, sightseeing places in Bangkok are not concerned by now) you should have a safe vacation there! Bonne chance - malheureusement mon francais n'est pas assez bon pour repondre à ta question en francais.