At least two states, according to the Wall Street Journal, have introduced legislation to permit firing squads — firing squads! — as an alternative option when lethal injection isn't available (due primarily to the Pentobarbital drug's manufacturer banning its use in capital punishment). Virginia wants to bring back the electric chair.
A Missouri state rep who sponsored the firing squad bill said he's not trying to "time-warp" his state back to the 1850s or the Wild West. He's just trying to be humane.
Ohio's failed experiment underscores and publicizes what will certainly become an even more pressing human rights and, in all likelihood, public relations issue in the coming years. If lethal injection is no longer feasible and humane, how will states execute prisoners tastefully?