"B" section page B1 of todays WSJ has an article entitled Drug Makers Go All Out To Squash Superbugs and another one titled How Bacteria Got Smart, Created Defences Against Antibiotics. A snipet....Some wiley critters such as E-coli, have developed the ability to pump the drug back out after the medicine invades the bacterial cell. Interesting article for all you bug freaks out there. Elliott with word 'help' in message body netnews@sift.stanford.edu