From the New York Times on Michael Barbaro, this is the Daily.

Today, President Trump says the nuclear threat from North Korea is over.

New reporting by the Times suggests the situation has only worsened since his summit meeting

with Kim Jong-un, back in June.

It's Tuesday, November 13th.

A few months ago, North Korean experts at a think tank in Washington started asking themselves

the question, what else could the North Koreans have out there?

David Sanger is a national security correspondent for the Times.

There are a lot of nuclear sites that we've known about in North Korea for a long time.

There are a lot that have been rumored.

But the big question is, what do the North Koreans really have and is it changing?

So at the think tank, man named Victor Chau began to think about a project to go figure

out where all of the North's nuclear and missile facilities were.

They began to assemble very detailed satellite photographs and compare those to every report

they've had over the past 30, 35 years of possible North Korean facilities.

These came from defectors, sometimes they came from previous older, not very good satellite photographs,

and they moved methodically across the country, quadrant by quadrant, looking for the telltale signs of missile bases.

Usually you can see tunnel entrances on the sides of mountains.

You can see special driveways that are large enough to carry these enormous mobile launchers where a missile is pulled out of a tunnel in the mountain and driven out to a road and can be set up to be launched.

They see certain kinds of outbuildings.

And they were just looking for the patterns to find out how many of these there were.

So what did they find?

...