This month, the JME includes 3 articles on the ethics of hypoxic training chambers for sport. The lead article by Spriggs disusses the Australian Football League's investigation into the ethical parameters of these 'altitude chambers'. A commentary is then offered by Torbjorn Tannsjo, Claudio Tamburrini and finally by Peter Fricker. Generally, the articles favour enhancement and changing the rules of sport to make enhancement more commonplace.