 The determination that governmental action constitutes a taking is, in essence, a determination that the public at large, rather than a single owner, must bear the burden of an exercise of state power in the public interest.Although no precise rule determines when property has been taken, see Kaiser Aetna v. United States, 444 U.S. 164 (1979), the question necessarily requires a weighing of private and public interests.In this case, the law confers a reciprocal benefit