What do you say? Stalling for time: one to get all evidence of nuclear material out of site : Two to get all evidence of nuclear material out of site. How deep in the earth do you have to go: 1 mile, 2 miles before you are undetected. The People of The Tunnels. Like even thing else Iran does its all underground and in the cover of darkness. Just like the coverings they make their women wear like it or not.