Michael posted last week on the lawsuits filed against numerous soft drink makers over alleged trace quantities of the chemical in their wares. For those following the issue, here are a few more links. The FDA sent this March 21 letter answering (and rebuking) the trial-lawyer-linked Environmental Working Group, which has been agitating the issue in the media. And Beverage Daily, Bill Childs, and American Council on Science and Health all offer further background.