Deja vu? Sigh...reminds of that same scare with Russia back in the 50s or 60s about bunkers in America.
Here's a satellite photo that came from a reliable named source showing an upclose satellite imagery of the North Korean Nodong missile test facility. Also, another link showing upclose photo of Kim Jong Il inspecting one of his rockets!
http://kokonutpundits.blogspot.com/2006/07/satellite-imagery-of-north-korean.html
I'm just glad the Ruskies didn't start anything because living on Spaghetti-O's for three weeks is not my idea of fun.
Japan may even start on a program of advanced preparations after the worlds model of military and civilian preparedness, Switzerland.
As the U.S. with our great wealth is gaining awareness of self protection, as revealed in new construction codes dealing with tornadoes, hurricanes, earthquakes, and the wealthy peoples safe rooms, these type of shelters will hopefully become more common.