I think N. Korea can easily be underestimated. They might be a small country in comparison to China or the U.S. but lets not make the mistake to
think they aren't capable of wreaking havoc before they get wiped off the planet. We are talking about a nation that has, according to wikipedia
Korean People's Army
Available for military service: 6,515,279 males, age 17-49 (2010 est.),
6,418,693 females, age 17-49 (2010 est.)
Fit for military service: 4,836,567 males, age 17-49 (2010 est.),
5,230,137 females, age 17-49 (2010 est.)
Reaching military age annually: 207,737 males (2010 est.),
204,553 females (2010 est.)
I know to take what wiki says cautiously but if the numbers are even close then that's a pretty sizable force.
Lately they have showed the world their nuclear capabilities and have also proved that they can get one to anywhere in the world.
If you can deploy a rocket and satellite into space like they have been doing then they can easily get a nuke on the other side of the world
regardless of what some media outlets are saying. You just have to get it up into space and then wait for it to orbit the country you want to hit.
Disguised as a satellite it might actually hit before it could be stopped.
They could even deploy an EMP burst with this method. How good would an opposing army be if it's people instantly had no electricity and
transportation? Chaos would ensue and the Government would have to deal with it's own citizens as well as counter an attack.
Their is a reason they've been doing the nuclear detonations and rocket launches along with deploying satellites. Is it all related? I think so.
We should take any threat from N. Korea very seriously.