I quite enjoyed your story about preserving Anasazi Indian sites in Utah by incorporating them into suburban developments (“Grave Goods,” May 10, 2008). This checks unauthorized exploration and looting. Paradoxically, it is Utah’s lax law that makes such a thing possible. Although developers are under no obligation to preserve, or even reveal the existence of, archeological remains, the cleverest among them have figured out that the remains may be attractive to their future clients. In countries where archeological remains are rife, archeologists and developers are at loggerheads precisely because of strict laws. Many clever tricks have been invented to get around them, too. In the wake of World War II, for instance, Italian builders came up with so-called up-down construction: start by driving pylons into the ground, continue by building the structure on top, and end by digging into the ground. If anything is found here, it can hardly affect the job itself.