US nuke commander 'assumes' North Koreans tested H-bomb
September 15, 2017
OFFUTT AIR FORCE BASE, Neb. (AP) — The top commander of U.S. nuclear forces said Thursday he assumes the Sept. 3 nuclear test by North Korea was a hydrogen bomb, suggesting a heightened U.S. concern that the North has advanced to a new level of nuclear firepower.
Air Force Gen. John E. Hyten, commander of Strategic Command, told reporters that while he was not in a position to confirm it, he assumes from the size of the underground explosion and other factors that it was a hydrogen bomb — which is a leap beyond the fission, or atomic, bombs North Korea has previously tested.