RACHEL MARTIN, HOST:
This is WEEKEND EDITION from NPR News. I'm Rachel Martin. The execution of a death row inmate in Oklahoma this past week has reignited the debate over the use of lethal injection in this country. According to reporters at the scene, Clayton Lockett writhed in pain after receiving the lethal combination of drugs. He had a heart attack 43 minutes later and died. On Friday, President Obama called the execution, quote, "deeply troubling" and ordered the Department of Justice to review how the death penalty is applied across the country.