Sometimes the biggest threats come from the things you cannot see. And, no, we are not talking about ghosts, although that\u2019s what\u2019s keeping Secret up at night. Today\u2019s show takes us underground to talk about an often overlooked danger lurking just beneath your feet: oil tanks. GeoScan Subsurface Surveys\u2019 Joseph Salazar joins Adam & Matt this week to chart why oil tanks are problematic, tank timelines, clues that a house was on oil, why your uncle\u2019s metal detector is not enough, and some horror stories too. Trust us! You\u2019ll tank us later.