NEW : South Korea has said it considers the satellite launch an attempt to develop a nuclear-armed missile , while the United States has warned the move would jeopardize a food-aid agreement reached with Pyongyang in early March . U.S. fighter jet crashes in U.S. ; pilot safely ejects . President Jethro Mullen visits South Korea two years to the day for a nuclear security summit . While there , he plans to make his 7th visit to the demilitarized zone . U.S. announcement of a satellite launch has increased tensions in the region .
NEW : U.S. fighter jet crashes in U.S. ; pilot safely ejects . President Jethro Mullen visits South Korea two years to the day for a nuclear security summit . While there , he plans to make his 7th visit to the demilitarized zone . U.S. announcement of a satellite launch has increased tensions in the region .