North Korea has repeatedly threatened to strike America with nuclear missiles.

They have spent years trying to perfect their weapons program.

Now two experts say they have the capability to kill 90 percent of Americans.

Writing in The Hill, former CIA Director James Woolsey and former Congressional Chief of Staff Dr. Peter Vincent Pry warn that North Korea is a far more dangerous adversary than the media portrays.

And they caution that the inabilities of North Korea being able to deliver a warhead via missile are not as great as they appear.

Woolsey and Pry write:

“The mainstream media, and some officials who should know better, continue to allege North Korea does not yet have capability to deliver on its repeated threats to strike the U.S. with nuclear weapons. False reassurance is given to the American people that North Korea has not “demonstrated” that it can miniaturize a nuclear warhead small enough for missile delivery, or build a reentry vehicle for an intercontinental ballistic missile (ICBM) capable of penetrating the atmosphere to blast a U.S. city.

Yet any nation that has built nuclear weapons and long-range missiles, as North Korea has done, can easily overcome the relatively much simpler technological challenge of warhead miniaturization and reentry vehicle design.

Indeed, North Korean dictator Kim Jong-Un has been photographed posing with what appears to be a genuine miniaturized nuclear warhead for ballistic missiles. And North Korea does, in fact, have two classes of ICBMs—the road mobile KN-08 and KN-14—which both appear to be equipped with sophisticated reentry vehicles. “

But even with missile delivery capabilities, the communist dictatorship could murder millions of Americans in a nuclear strike using covert means.

Woolsey and Pry write:

“Even if it were true that North Korea does not yet have nuclear missiles, their “Dear Leader” could deliver an atomic bomb hidden on a freighter sailing under a false flag into a U.S. port, or hire their terrorist allies to fly a nuclear 9/11 suicide mission across the unprotected border with Mexico. In this scenario, populous port cities like New York, New Orleans, Los Angeles, and San Francisco, or big cities nearest the Mexican border, like San Diego, Phoenix, Austin, and Santa Fe, would be most at risk.

A Hiroshima-type A-Bomb having a yield of 10-kilotons detonated in a major city would cause about 200,000 casualties from blast, thermal, and radiation effects. North Korea has tested a nuclear weapon having an estimated yield of 20-30 kilotons. The Defense Department assesses that on January 6, 2016, North Korea may have tested components of an H-Bomb. H-Bombs are much more powerful than A-Bombs and can produce much greater casualties—millions of casualties in a big city like New York.”

But will North Korea even need stealth means to deliver a nuclear strike on America?

Woolsey and Pry warn that the idea that a nation can test A-bombs, but can’t minimize warheads, is a dangerous assumption:

“The notion that North Korea is testing A-Bombs and H-Bomb components, but does not yet have the sophistication to miniaturize warheads and make reentry vehicles for missile delivery is absurd. 

Eight years ago, in 2008, the CIA’s top East Asia analyst publicly stated North Korea successfully miniaturized nuclear warheads for delivery on its Nodong medium-range missile. The Nodong is able to strike South Korea and Japan or, if launched off a freighter, even the United States.

In 2011, the Director of the Defense Intelligence Agency (DIA), Lt. General Ronald Burgess, testified before the Senate Armed Services Committee that North Korea has weaponized its nuclear devices into warheads for arming ballistic missiles.

On April 7, 2015, at a Pentagon press conference, Admiral William Gortney, then Commander of North American Aerospace Defense (NORAD), responsible for protecting the U.S. from long-range missiles, warned that the intelligence community assesses North Korea’s KN-08 mobile ICBM could strike the U.S. with a nuclear warhead.

And on October 8, 2015, Gortney again warned the Atlantic Council: “I agree with the intelligence community that we assess that they [North Koreans] have the ability, they have the weapons, and they have the ability to miniaturize those weapons, and they have the ability to put them on a rocket that can range the [U.S.] homeland.”

Since taking office, Donald Trump has put North Korea’s threat to the United States at the top of his list to deal with.

They could develop the capability of killing 90 percent of Americans.

And Trump is correct to take this threat seriously.