WTF, did you read his reply?
I'm sure he's aware that a cell tower near the DMZ could reach into North Korea. However, the only village near the DMZ is a propoganda village:
http://en.wikipedia.org/wiki/Kij%C5%8Fng-dong where nobody lives.
Also, anything that transmits can be detected and located. You do know what transmit means don't you?
Yes you can create mesh networks in Africa because in Africa you can transmit without being hunted down and placed in a forced labour camp along with your parents, grand parents and any children you may have. If you want to learn more, read this book:
http://www.amazon.co.uk/Aquariums-Pyongyang-Years-North-Korean/dp/1843544997