Speaking at the American Enterprise Institute in Washington, Mr Pompeo gave inside details of what goes on behind closed doors when he gives his nearly daily classified briefing that the US President receives in the White House.
Pompeo said the Central Intelligence Agency believed Kim's aim was more than just deterrence against the United States to preserve his rule and that he would use his weapons for his ultimate goal of reunification of Korea under his control.
Pompeo made the comments during a speech in Washington on Tuesday.
Pompeo said that the agency views Kim Jong-un as a rational actor and believes he will not stop at a "single successful test". And he said Pyongyang's next likely move would be development of an arsenal of weapons and setting up a system to launch multiple missiles. "And our mission is to make the day that he can do that as far off as possible". "That increases the risk to America", Pompeo said.
"We are not quite where we need to be, our mission is not complete but we have officers all around the world working diligently to make sure that we do everything we can to support the USA pressure campaign".
The CIA director also stressed Pyongyang seeks to boost its weapons manufacturing in an effort to force the reunification of North and South Korea under communist rule.
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Mr Pompeo suggested that North Korea - which has a burgeoning nuclear programme but a faltering economy - may start selling its weapons to other countries.
He wouldn't address the question of whether there are military options available to the United States that don't risk an escalation into nuclear war with North Korea.
The notably peaceful statement follows the recent agreement between North and South Korea to march under a unified flag during opening ceremonies at the Winter Olympics next month in Pyeongchang, South Korea.
A limited strike by the US against North Korea could ignite a nuclear war, experts have warned.
"If I had an experience set or if it needed full input from all of the intelligence community or the broader USA government ... then I keep that decision", he said. "We did some remarkable things, some creative things, some things that absolutely had real risk and continue to, but it's in a place and on a subject about an adversary that we simply couldn't afford to have a gap any larger than the one that we had before that facility went away".
"The president is intent on delivering this solution through diplomatic means, it is the focus, it has been uniformly that now for 365 days and it remains so today".
"We should make sure that the secrets we steal aren't re-stolen", he said, pointing out that the person in charge of the counter-intelligence center now reports directly to him.