North Korea Tests New Rocket Engine That Could Target US Territory

North Korean leader Kim Jong-un has tested a solid-fuel rocket engine capable of reaching the continental United States. The new engine has a maximum thrust of 2,500 kilonewtons, up from 1,970 kilonewtons in a previous test in September. Some experts have called the claim an exaggeration.
Details of the test, including where it took place, were not disclosed. Experts are wary of the DPRK's claims, as the engine's burn time and other technical details have not been disclosed.