Sounds like part of one of them conspiratorial theories but that's one reason for the FWIW.
Another reason was it provides the names of companies who are alleged to use prison labor if you wanted to check them out.
IBM, Boeing, Dell, Compaq, Microsoft, Revlon, Intel and Motorola are listed on the graphic as among some of the companies that are alleged to have operations inside state prisons.
I know in California some of those companies do TRAINING for inmates. They teach them a set of skills that they might use if and when they ever get out.
I hardly consider that to be USING slave labor.
I guess my biggest gripe is that when the lefties want to damage the US they don’t care what the facts are they just spew propaganda