The "Boil Water Advisory" went into effect again the other day for parts of NW Atlanta. This comes right behind another Boil Water Advisory from the Buckhead pump failure back in June of 2009. Both of these advisory notices are to notify you of the risk of "waterborne infectious agents".
Cell Tower Failure and Intrusion Alarms, by Rottweiler Security
FAA requirements specify that if a tower lighting system fails on a tower, the site owner has 15 minutes to submit a report or risk a large FAA fine for endangering the flying public.