One thing I learned travelling: the first thing to ask when someone tells you a place is dangerous is "Have you been there?" If the answer is "No," just ignore.
I am currently living in Africa.
Yes, it can be dangerous. It can also be safe. I'm still in one piece but there have been incidents suggesting how bad things can get.
Anyway, I have had the same thoughts as you about an exchange here and I concluded that it wasn't worth it. I'm still open to discussion though, PM me if you wish.