 While this Court has recognized that the "Fifth Amendment's guarantee ... [is] designed to bar Government from forcing some people alone to bear public burdens which, in all fairness and justice, should be borne by the public as a whole," "Armstrong v. United States", 364 U.S. 40, [438 U.S. 104, 124] 49 (1960), this Court, quite simply, has been unable to develop any "set formula" for determining when "justice and fairness" require that economic injuries caused by public action be compensated by the government, rather than remain disproportionately concentrated on a few persons.See "Goldblatt v. Hempstead", 369 U.S. 590, 594 (1962).Indeed, we have frequently observed that whether a particular restriction will be rendered invalid by the government's failure to pay for any losses proximately caused by it depends largely "upon the particular circumstances [in that] case."