As an archaeologist I find this decidedly helpful. According to a research team in Israel they are utilizing satellites to find sunken treasures of a metalic origin. Kind of takes the fun out of looking, but on the same token gives us more time to dig. Having gushed through digs in the sahara to find only a few small sherds of pottery…Hopefully this new technology (or improved technology as it were) will help a lot… Maybe we can tune it to Jonathan Chance’s Midden in his back yard 