After the apocalypse, when we all become mole people, which tunnel will you call home?

DARPA’s Tactical Technology Office is looking for urban, privately managed tunnels, suitable for post-global catastrophe situations.

The goal is to find out how “the underground domain” affects humanity, as the request for proposals issued by the Defense Advanced Research Projects Agency makes clear.

“The subterranean domain - whether human-made tunnels, urban underground infrastructure, or natural cave networks - is becoming increasingly relevant for global security and disaster-related search and rescue missions,” the proposal says. “As such, DARPA is interested in understanding the state-of-the-art in innovative technologies that have the potential to disruptively and positively impact how the underground domain is leveraged without prohibitive cost and risk to human lives.”

It’s not out of the realm of possibility. The Washington Post recently interviewed veteran science writer Bryan Walsh, who se book “End Times: A Brief Guide to the End of the World” was just released.

In that intervew, Walsh said “we're in greater existential peril than we've ever been before.”

“On one hand we have those background risks (volcanoes, asteroids) that have always been with us, but we're introducing new risks into the world, even as we're more connected, which means that those risks can spread much more rapidly than in the past,” he said. “And the spread of survivalism on one hand, and the techno-dystopians on the other, speaks to that, a recognition of where we're at and where we're going.”

DARPA did not immediately return requests for comment, but the RFP suggests the agency is taking a look at life underground.

Specifically, DARPA is looking for “human-made underground environments that span several city blocks with complex layouts and multiple stories, including atriums, tunnels, and stairwells are ideal.”