Since early December there has been a lot of controversy about an article published in Science about bacteria using arsenic in their DNA. A number of people pointed out that this was a useful case to use for an information literacy article. For example, Bonnie Swoger, a Science and Technology Librarian, did a post on 10 December about using the arsenic bacteria story as a teaching moment for undergraduates. As well as the original article there is much online commentary and other pieces of evidence, for example an interview with the first author of the paper, published later in the month, also in Science.
Pennisis, E. (2010) "Exclusive Interview: Discoverer of Arsenic Bacteria, in the Eye of the Storm." Sciencenow, 20 December. http://news.sciencemag.org/sciencenow/2010/12/arsenic-researcher-asks-for-time.html
Photo by Sheila Webber: roses at Christmas.