One more post:
I wouldn't register in those places, either. Possibly in Indonesia in light of the Muslim takeover. I haven't been there since the mid 90's.
You have to assess the risk. If I had found myself held hostage by extremists in Tanzania, I'd expect lots of Freepers to post about what an idiot I was to go to Dar es Salaam, but at least the US would know I exist!!
Those of us who suffer from wanderlust accept the risk. The benefits of world travel far outweigh the drawbacks, even in this day and age. I consider myself incredibly lucky to be able to travel so much and live overseas, although I miss the USA.
Good night!!