Is the Death Penalty Dying By Lethal Injection?

The very popular Stuff You Should Know podcast recently devoted an entire episode to lethal injection.  The episode, entitled “Is lethal injection humane?,” discusses how lethal injections work and how states are currently struggling to find the drugs necessary for the death penalty.  

Here is a summary of the program: 

Since the Supreme Court’s ban on capital punishment was reversed, states have sought a humane method of killing sentenced criminals. They settled on lethal injection, but is this quasi-medical means of killing as quick and painless as we think?