NOT GOOD: New North Korea photos reveal hidden details of missile program.

“This is the North Koreans showing us, or at least portraying, that their solid-fuel missile program is improving at a steady rate,” David Schmerler, research associate at the Middlebury Institute of International Studies at Monterey’s James Martin Center for Nonproliferation Studies, told CNN.

One photo of Kim reveals a poster on the wall clearly mentioning a missile called “Pukguksong-3,” a potential successor to the previous two versions of the missile which were both solid-fuel, medium-range projectiles.

North Korea’s desire to build solid-fuel missiles is driven by their need for projectiles they can launch quickly and subtly, said Michael Duitsman, also a research associate at the James Martin Center.

“Solid fuel missiles are much faster to deploy … a solid fuel missile is always fueled so all they have to do is drive it to the place they want to launch it,” he said.

“It’s much easier to put into action, much harder to catch before it launches because they’re a lot less in terms of launch preparations that could be done.”

Developing… all too quickly.