Earlier this week, Congress held hearings into the joint decision made by the Food and Drug Administration and the U.S. Department of Agriculture to allow meat and fish to be packaged in a modified atmosphere containing carbon monoxide, according to this story at ABC News. Treating the meat with carbon monoxide affects its color and makes it appear to look fresh indefinitely.
The Consumerist posts here that carbon monoxide treated meat is here to stay for now.
Meanwhile, the AP reports that Target has asked the USDA to let the company add labels that warn consumers when meat is treated with carbon monoxide. USDA officials said they would approve the proposed labeling if the wording is "truthful and not misleading." (More on Target's move is available here via Blogging Stocks, the premier blog for stock news.)
Finally, the Chicago Tribune reported here that a loophole in USDA inspection allows for meat that tests positive for e. coli to be sold if it is labeled "cook only."