Retired CIA Director James Woolsey said Friday that North Korean dictator Kim Jong-un "may have more up his sleeve" than firing a nuclear missile at the United States.

"It is a little worse than that," Woolsey, 75, a former Navy undersecretary, told Don Lemon on CNN. "They can launch a satellite into orbit.

"That's actually easier to do than to hit a target on the other side of the Earth.

"If that satellite contains a small nuclear weapon — and it is detonated over some place, say the United States, it can be devastating to the electric grid.

"So, we've got a bigger problem," Woolsey said. "He may be able to detonate something inside a satellite that is in orbit — and that is extremely troubling."