OPENING UP A BOMB SHELTER sealed since 1961.

Two retractable cots hang from one wall in a cramped room that is illuminated by a single light bulb. Nearby is a crank for the air shaft; across the way are spigots for water stored in tanks.

In one corner is a low, odd-looking toilet sheltered behind a plastic shower curtain.

“Probably leads right into the aquifer,” Denham, 44, joked to the Austin American-Statesman (http://bit.ly/1bFWNe3) before pointing out a disabled periscope near the stairwell. “Perfect for the zombie apocalypse if it comes.”

Lined on shelves of the shelter — built by a retired Air Force colonel who was also something of an inventor — are supplies and equipment for surviving a week or two underground. That was the length of time civil defense officials estimated — at least for public consumption — necessary for radioactive fallout from a nuclear bomb to clear away.

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