The Court should either profess its willingness to reconsider all these matters in light of the views of foreigners, or else it should cease putting forth foreigners' views as part of the reasoned basis of its decisions. To invoke alien law when it agrees with one's own thinking, and ignore it otherwise, is not reasoned decisionmaking, but sophistry
One must admit that the Missouri Supreme Court's action, and this Court's indulgent reaction, are, in a way, understandable. In a system based upon constitutional and statutory text democratically adopted, the concept of "law" ordinarily signifies that particular words have a fixed meaning. Such law does not change, and this Court's pronouncement of it therefore remains authoritative until (confessing our prior error) we overrule. The Court has purported to make of the Eighth Amendment, however, a mirror of the passing and changing sentiment of American society regarding penology. The lower courts can look into that mirror as well as we can; and what we saw 15 years ago bears no necessary relationship to what they see today. Since they are not looking at the same text, but at a different scene, why should our earlier decision control their judgment?
However sound philosophically, this is no way to run a legal system. We must disregard the new reality that, to the extent our Eighth Amendment decisions constitute something more than a show of hands on the current Justices' current personal views about penology, they purport to be nothing more than a snapshot of American public opinion at a particular point in time (with the timeframes now shortened to a mere 15 years). We must treat these decisions just as though they represented real law, real prescriptions democratically adopted by the American people, as conclusively (rather than sequentially) construed by this Court. Allowing lower courts to reinterpret the Eighth Amendment whenever they decide enough time has passed for a new snapshot leaves this Court's decisions without any force--especially since the "evolution" of our Eighth Amendment is no longer determined by objective criteria. To allow lower courts to behave as we do, "updating" the Eighth Amendment as needed, destroys stability and makes our case law an unreliable basis for the designing of laws by citizens and their representatives, and for action by public officials. The result will be to crown arbitrariness with chaos.
Net net, this is a polarizing issue, not just because of the trends expressed by the Court in other issues, or because of judicial activism, but in its own right. Children are traditionally perceived as a 'protected', immature class. Yet when children break rules, they are liable for punishment like anyone else. The question of whether this punishment should extend to the death penalty for egregious crimes is a bridge most societies have crossed over to erring on the side of caution. The United States joined these countries today.