Article Photos: Official: Texas can keep lethal drug source secret 1/1

File - In this April 12, 2005 file photo is the death chamber at the Missouri Correctional Center in Bonne Terre, Mo. Missouri's attorney general said Thursday, May 29, 2014 the state should establish its own laboratory to produce chemicals for use in executions, rather than rely on an "uneasy cooperation" with medical professionals and pharmaceutical companies. (AP Photo/James A. Finley, File)