(FILES) This file photo dated 29 May, 19

CHATTAR, PAKISTAN: (FILES) This file photo dated 29 May, 1998 shows a view of the Chaghi district hill in Chattar, some 30 to 35 kilometers from the site of nuclear blasts that Pakistan carried out in the Chaghi test zone in southwestern Baluchistan province. North Korea's announcement 09 October, 2006 that it has carried out its threat to explode a nuclear device marks the first real life test of the world's deadliest weapon to take place anywhere in the world since 1998. Nuclear weapons testing has in principle been banned since 1996; only India and Pakistan are known to have detonated devices since then. AFP PHOTO/FILES (Photo credit should read BANARAS KHAN/AFP via Getty Images)