In Askew v. American Waterways Operators, Inc., 411 U.S. 325, 93 S.Ct. 1590, 36 L.Ed.2d 280 (1973), the Court indicated that it disfavored "allowing federal admiralty jurisdiction to swallow most of the police power of the states over oil spillage--an insidious form of pollution of vast concern to every coastal city or port and to all the estuaries on which the life of the ocean and the lives of the coastal people are greatly dependent." 411 U.S. at 328-29, 93 S.Ct. at 1594