On Monday, Jan. 20, four death-row inmates in Ohio filed a motion in U.S. District Court in Columbus challenging the law that shields the names of companies that provide lethal injection drugs to the state in death penalty cases. This comes at a time when Ohio is changing the drugs it uses after a botched execution in 2014. The Marshall Project, a non-profit news organization that covers criminal justice issues, reports that an alternative drug that Ohio is considering is hard to come by – and its source may never be known under the state’s secrecy law. The piece was reported and written by Maurice Chammah. You can follow the Marshall Project on Facebook or Twitter.