Guidelines were revised in 2001 to allow for a range of 300 kilometers . An analyst says he does n't find South Korea claim to be credible . `` It was politically impossible for them not to react '' to South Korea , a professor says . North Korea 's announced a deal with the U.S. to extend its missile range to include the South . Previously , the North agreed to limit its missile range in exchange for access to North Korea 's technology .
An analyst says he does n't find South Korea claim to be credible . `` It was politically impossible for them not to react '' to South Korea , a professor says . North Korea 's announced a deal with the U.S. to extend its missile range to include the South . Previously , the North agreed to limit its missile range in exchange for access to North Korea 's technology .