Obtuse,
Just my opinion:::
The first state dept advisory that you posted has been around the circuit a long time with the seasonally added spring break caveat. Doesn't sound much different than that what you read regarding most Carribbean countries and the Riveira Maya. I can drive you through sections of Phoenix that will mimic what this advisory cautions of.
Your second state dept. advisory posted sounds like a typical CYA in case some ugly American starts screaming that they can't get in touch with their broker on their Nokia camera phone from the chicken drop.
I don't understand the expat references nor do I suspect any expat is going to tell us all to "come on down" as the village burns in the background so that we may enjoy a Belikin happy hour at their business.
It's not the states, it doesn't pretend to be, and I think thats what people describe as part of the magic.
If you are afraid or concerned you should probably fish closer to home to feel safer. (unless it's in Jersey)
jomo