A few months ago I highlighted this article How Italian Catholics pulled the plug on US executions It appears we shall know by Tuesday night how much of the plug has been pulled when Texas plans to execute someone. See Inmate to be first in Texas executed with new drug .
Update- Just saw this tweeted :
U.S. Supreme Court gives #Texas #DeathRow inmate Cleve Foster a temporarty stay of execution. Questions over drugs used in #deathpenalty.