In the News Feature ‘BRAIN storm’ (Nature 503, 26–28; 2013), a description that characterized a May meeting run by the National Science Foundation as being chaotic was incorrectly attributed to Van Wedeen. And in the News Feature ‘A race against resistance’ (Nature 503, 186–188; 2013), the quote “If we just roll this out without surveillance, we risk repeating all of the mistakes made in the past” was wrongly attributed to Paul Milligan instead of to Christopher Plowe.