The Spirit of Enterprise blog disbelieves in my favorite law, "the law of unintended consequences." Full post is here. Money quote is here:
"The destruction of farms and other economic value to preserve open space may or may not be worth it. Let us not, however, hear that any such consequence is "unintended" when it is entirely foreseeable. Foreseeable consequences are intended, whether or not they are desirable. Remember that when assessing the value of any regulation."