Letters to the Editor Letters to the editor From the issue of March 23, 2013 Share this:FacebookTwitterPocketRedditPrint By Science News March 7, 2013 at 2:20 pm This article is only available to Science News subscribers. Subscribers, enter your e-mail address to access our archives. Client key* E-mail* Log in Not a subscriber? Science News is a nonprofit. Support us by subscribing now. Subscribe