I am a geologist imparting my understanding of how the Earth works to public audiences. After grad school I was an educator at the U.S. Military Academy and Fairleigh Dickinson University (see details). I developed and taught terrain analysis, astronomy-astronautics, physical geography (USMA), Earth and environmental sciences (FDU), continued learning and writing (see bibliography). Post-doc at Rice University and Honorary Research Fellow at University College London. Joined the U.S. Nuclear Regulatory Commission (NRC) to help evaluate geological hazards at U.S. nuclear facilities and proposed sites for high-level radioactive waste (HLW) facilities. I acted as section leader, acting branch chief, On-site representative at Yucca Mtn. project office, Las Vegas, NV (2-yr assignment), and senior geologist. I represented NRC at HLW meetings in Japan and China and visited their respective underground research facilities (Tono Mine; Gobi desert). Responsibe for site evaluations in WA-Hanford for a nuclear power plant, potential HLW and uranium mill-tailing sites resulted in reports on capable fault, seismic hazards and safety evaluations. I've retained Lic. Geol. status for WA. GE Test Reactor case study, a test-reactor near an active fault in CA, was a trial-by-fire. I defended conclusions of NRC's team, and advised our attorney on points of tectonics for cross examination of the licensee's experts. A book was written about this case (Meehan, R.L., 1984, The Atom and the Fault: MIT Press).