Just to get the details right on the incident Lewis mentioned relating to my book, when the issue of Summers’s women-in-science remarks first hit the news, Harvard posted a terse, unapologetic statement on the president’s page. A couple of days later, after the firestorm blew up and went national, that statement was pulled down and was replaced with a longer and more apologetic version. I captured the Google cache of the original statement, and intended to reproduce it in Blown to Bits as an illustration of how hard it is to take anything back once it has been sent over the Internet. Harvard said I couldn’t (we sought permissions from about 75 copyright holders for illustrations in the book, and this was the only denial we received). So I left out everything but the first line of the statement when I reproduced the screen shot, and used it as an illustration both for the discussion of information persistence (p. 125) and again later while discussing abuse of copyright law.