A South Korean government research agency says North Korea's new leader will either order a third nuclear test or a long-range missile launch later this year. A report issued Wednesday by the Institute for Foreign Affairs and National Security warns that Kim Jong Un will engage in "military adventurism" to boost his image as a military leader, as well as his grip on power. It predicts the tests will be conducted in late 2012 or early 2013, when both the United States and South Korea will hold presidential elections. The institute, which is affiliated with the foreign ministry, says the nuclear test could utilize material from the North's uranium enrichment facility, which it unveiled in 2010.