The U.S. now believes North Korea might have attempted to test components of a hydrogen bomb on January 6, after further review and analysis of the latest intelligence information.
A U.S. official directly familiar with the latest U.S. assessment said there may have been a partial, failed test of some type of components associated with a hydrogen bomb.
The assessment comes after careful examination of the latest intelligence analysis of the test data. But the official emphasized there is no final conclusion. …
The U.S. still does not accept North Korea’s claim that it tested a hydrogen bomb, but air sampling conducted after the test has proved inconclusive, the official said. That prompted another look at the seismic data.