North Korea Could Have Enough Uranium For 6 Nuclear Bombs By 2017, Experts Say

North Korea has an abundance of uranium reserves and has been working covertly for well over a decade on a project to enrich the material to weapons-grade level.

http://www.huffingtonpost.com/entry/north-korea-nuclear-weapons_us_57d8fe8fe4b0fbd4b7bc6834