"Only God knows what is in the ground, but what they have delineated so far has been big on tonnage, light on grade, and a lot of it is deep, " says John Ing, a gold analyst at Maison Placements Canada.
In 1994, North Korea agreed to stop making plutonium, in return for which America and its allies would supply the country with fuel oil and build two Western-designed light-water nuclear reactors (since it is a bit harder to produce weapons-grade materials from such reactors than from the ones North Korea had been building).