What is the definition of ‘wilderness’ in the Wilderness Act of 1964, and what sort of difficulties arise from this definition? (a) Are these difficulties insurmountable? Should the definition be revised, abandoned, or left as it is? (b) What sort of argument would you expect to hear from someone who disagrees with you about this issue? (c) How would you respond? [for this question, see especially Michael Nelson, J. Baird Callicott, Reed Noss]