Court to review constitutionality of lethal injection

The story is here.  This should be an interesting case.  The Court's execution-regulation strategy has, over the years, proceeded down three main tracks:  (1) regulating the fairness of the procedures through which capital sentences are handed down; (2) reducing the number of offenses for which the death penalty is a permissible punishment; and (3) narrowing the categories of offenders who may be executed.  For the most part -- notwithstanding the text of the Eighth Amendment -- there have been relatively few cases dealing with execution-methods.  We'll see . . .