FILE - These undated file photos provided by the Virginia Department of Corrections, Arizona Department of Corrections, Kentucky Department of Corrections and Oklahoma Department of Corrections, ... more 
FILE - These undated file photos provided by the Virginia Department of Corrections, Arizona Department of Corrections, Kentucky Department of Corrections and Oklahoma Department of Corrections, respectively, show death row inmates, from left to right: Teresa Lewis, Jeffrey Landrigan, Gregory Wilson and Jeffrey Matthews. How states put condemned inmates to death with drugs could be changing as a shortage of the anesthetic used to render prisoners unconscious extends into 2011, jeopardizing some executions. (AP Photo, File) less 
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Associated Press
Mon, Sep 27, 2010 3:58 PM EDT