The government certainly has no interest in private treasure hunting. His next big foray came in the summer of 1992, when he traveled to Israel to try to image some archaeological sites. Israeli cabinet minister Yuval Ne'eman had learned of Witten's work and wrote to former Secretary of Energy James Watkins asking for imaging assistance at two sites. In June 1992, Witten and his GDT system headed for Israel. He would travel first to the upper Galilee region to try to image Tel sites.
Successive cultures bury what's already there, then build on top.
After trying the Tel sites, he would go to the Negev, where archaeologists were beginning to unearth a subterranean city more than 6,500 years old. Witten was nervous. I had to plan the trip not knowing what I would have in the way of resources and site support. I knew the expense to send me was great, and I only had one shot at doing it right. I wasn't going to get another try.