Dangerous Minds pal Mike Backes writes:

“From Hardened Structures, a survivalist construction company, comes their line of 2012 Shelters…  Here’s their threat assessment (emphasis mine)... Which engineers and scientists might those be?”

Threat Assessment: While the shelter will be designed and constructed to mitigate the anticipated effects of 12/21/2012, no one knows for certain what, if anything will actually occur on this date. However, most engineers and scientists agree that for a fully protected 2012 shelter the following threats must be mitigated;

3-Bars Blast Overpressure of 45 psi
Force 10 Earthquake in successions
450 MPH winds
Extreme Gamma & Neutron attenuation from a 100 megaton air burst detonated 20 miles away
Solar Flares with 1,000,000 volt EMP
Flooding (complete submersion for 100 hours)
Extreme External Fires at 1250 F for 10 days
Magnetic Pole Shift
Radiological, Chemical and Biological Weapons
Forced Entry and Armed Assaults
12’ of snow and 10’ of rain
500 lb Hail Stones or flying debris at a speed of 100 mph

Their website has some 3-D fly throughs. I like the one that shows the underground bunker and breaks through the earth’s crust to show you the fortified shelter below. These guys are hardcore! Hardcore “what” I leave to you…