>>15using three nearby cell towers, government can even get your precise coordinates
http://en.wikipedia.org/wiki/Triangulationthat applies to any radio emitters, not just cell phones. So if you get yourself a military grade communication equipment, they can get you too and use artillery strike.
http://en.wikipedia.org/wiki/Dzhokhar_Dudayev#Death_and_legacyDudaev was killed on 21 April 1996, by two laser-guided missiles when he was using a satellite phone, after his location was detected by a Russian reconnaissance aircraft, which intercepted his phone call.