injections, tops. they're not scheduled to execute anybody in august. they could run out in september or october. what's the problem? problem is the suppliers of lethal injection drugs get pressure from critics of the death penalty to stop making the drugs available. also european manufacturers of the drug have protested the use of their product in executions, brooke. >> so this if they're obviously running out of this, are there alternatives? what are they? >> reporter: yeah. you have to think outside the box on excuses here, i guess. georgia, arkansas, south dakota and tennessee have all tried to get around this in the first place by just keeping the names of the suppliers secret so they don't get boycotted or whatever. missouri has actually talked about switching drugs and going to propofol, which you'll remember is the drug believed to have killed michael jackson. but it's never been used in an execution before. the courts still have to approve use of the drug for that purpose. missouri, by the way, is even considering going back to the gas chamber as the main form of