I always enjoy reading stuff about North Korea. I have one friend (American) who has been there and he says it was bizarre.
There was a window of opportunity in 2001 to run the Pyongyang Marathon, for one year only. The price was something like $1200 or $1500 for everything, flight from Beijing, 3 night hotel stay, race entry, even food, and yes, Americans were welcome.
I visited the North Korean embassy in Vientiane Laos in 2003 to try to get into the Pyongyang marathon but my inquiry went nowhere. I tried calling the sports federation in 2004 to try to get in, but that went nowhere as well.
The closest I ever got to Pyongyang was meeting the North Korean delegation to the Xiamen Marathon in 2004. Interesting people. The women were absolutely the most homely gals that I have ever seen.