There were three executions in the U.S. in the span of 24 hours this week. They were the first executions since April, when an Oklahoma inmate died of a heart attack after a botched lethal injection. This week’s injections were carried out amid a growing debate about whether states should have to disclose where the drugs come from. The executions took place in Florida, Georgia, and Missouri, each of which has refused to say where it got the drugs.