At a news conference in Brazil, U.S. Defense Secretary Leon Panetta urged North Korea not to engage in any<br/> <br />provocation that could increase instability, as speculation mounts about a possible third nuclear test.<br/> <br />(SOUNDBITE) (English)U.S. DEFENSE SECRETARY LEON PANETTA, SAYING:<br/> <br />"I again would strongly urge them not to engage in any kind of provocation - be it nuclear testing or any other act -<br/> <br />that would provide greater instability in a dangerous part of the world. I do not have any specific information as to whether or not<br/> <br />they will proceed or not with additional provocations at this time."<br/> <br />Sources told Reuters that North Korea has almost completed preparations for a third nuclear test, a move that will draw<br/> <br />further international condemnation following a failed rocket launch if it goes ahead<br/> <br />Deborah Lutterbeck, Reuters
