A little over a year ago, a routine audit at Wal-Mart reported a few missing exit signs at the company's stores and warehouses. As the audit continued, more and more signs turned up missing, and a month ago, Wal-Mart revealed that as many as 20% of the 70,000 signs at its 4500 facilities cannot be accounted for, a stunning total of 15,800 signs in all.
This would be of no particular concern -- except that the signs are radioactive.
Another reason not to shop at Wal-Mart.
There are more than 2 million such signs in North America, and their use and disposal is supposed to be monitored by the U.S. Nuclear Regulatory Commission. Despite this, broken signs are often simply thrown away and wind up leaching their tritium into landfills.
But, where are all those missing Wal-Mart signs?
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