Control.
You simply cannot forcibly control a well armed popluation and I think Kofi Annan and that group of tin-horn little dictators in funny hats would like nothing better than to control as much of the worlds population as possible.
The thought of the armed citizens of the United States scared the Japanese during World War II. Admiral Yamamoto said: "You cannot invade the mainland United States. There would be a rifle behind each blade of grass."
Likewise, after the Cold War, a group of former KGB agents and CIA agents were reportedly meeting in Europe when they raised the question about a Soviet invasion. The Russians reportedly said: "Not unless your government could have disarmed citizens. You have too many guns."
Read a related article by Geoff Metcalf of NewsMax.com