Here is a recent report from Wal-Mart Watch about the impact of Wal-Mart's food importation from China. Wal-Mart being one of the top ten importers of Chinese goods, including food goods, could ultimately have an impact on the quality of the food you eat.

Evolving Excellence has been discussing how Wal-Mart's long supply chain has been impacting Wal-Mart... and how that then comes back to "bite" China. That long supply chain makes it especially difficult for the company to deal with fickle fashion consumers.
http://www.evolvingexcellence.com/blog/2007/05/walmart_bites_c.html
Ken