Amilitary base a few miles from a medium- sized city is being decommissioned. the base is a large one, sited along a coastline, and includes some small hills, pristine woodlands and wetlands, streams, a river, and a small lake. there is a railroad spur that connects the base with the nearby city, as well as a four- lane highway. the base contains housing, schools, a hospital, shops, and recreational areas for a population of 10,000. the city's options for using, selling, or leasing the land are numerous, and many groups come forward with proposals. members of several local environmental groups propose that nearly all of the buildings be removed and the area turned into a regional hiking and camping area, with very limited vehicle access. this will preserve the natural areas while providing recreation for the city dwellers. one issue that is raised by opponents is