CNN CNN Newsroom With Carol Costello January 8, 2016 14:26:00
Now, there is a lot of speculation about what exactly was detonated. many critics and experts around the world are skeptical that it was actually a hydrogen bomb based on the initial readings. but we know according to a u.s. official talking to cnn, a u.s. air force sniffer planes have been conducting missions, taking air samples. there are also ground monitoring stations. this is work being done in china and japan and south korea to check for changes in radiation levels just to figure out exactly what north korea detonated. next week we can expect talk about more possible sanctions. and one o...