Section 107(a) of the federal Superfund statute begins "[n]otwithstanding any other provision or rule of law, and subject only to the defenses set forth in subsection (b) of this section --" certain "covered persons" are liable for certain response costs and natural resources damages.  42 U.S.C. § 9607(a)(emphasis added).  The problem is that section 107(b) does not seem to be complete.  It lists defenses of "act of God," "act of war," or "act of a third-party."  The statute contains other defenses, and the courts have recognized more.  What then should be made of that opening phrase?  I explore this issue in my June column for the Legal Intelligencer / Pennsylvania Law Weekly.  Read Defenses to Superfund Claims:  Is Section 107(b) the Complete List?, 35 Pa. L. Weekly 588 (June 26, 2012), by clicking here.