An atomic bomb is a tactical nuclear device for use in a wartime environment. A hydrogen bomb, which uses an atomic bomb as a trigger, is near enough a doomsday device which offers no battlefield or tactical advantage to its possessor. It’s only use is to comprehensively destroy. This is just in, except you will hardly see it mentioned anywhere at all: North Korea Says It Conducted Successful Hydrogen Bomb Test. And to give their statement evidential support, there is this:

North Korea said it successfully tested a hydrogen bomb, the fourth time it has detonated a nuclear device and a move that dramatically escalates tensions on the peninsula with neighbors South Korea and Japan.

The regime in Pyongyang detonated a hydrogen device for the first time at 10 a.m. local time, its official Korean Central News Agency said. The explosion was initially detected as a magnitude 5.1 earthquake by the U.S. Geological Survey.

But in case you are worried that this will merely pass by without some sort of response from the West, the story does conclude with this:

The Korean won declined as much as 0.8 percent to 1,197.85 per dollar, the weakest level since September. The Kospi index of shares dropped 0.6 percent as makers of defense products such as Speco Co. surged. Ten-year bonds advanced, pushing their yield down one basis point to 2.05 percent.

We are in Act I of what has all the makings of being the most destructive era in human history.