Note to future self

A DECADE ago, dozens of former fighters from both sides of Northern Ireland's Troubles sat down to talk about their roles for the oral history the Belfast Project. They were assured that the recordings would not be made public until after their deaths. But in July 2013, Boston College, which had been storing the recordings, was forced to release several tapes to Northern Ireland's police service as part of an investigation into the 1972 murder of Jean McConville.

Such transgressions have got Jonathan Zittrain, director of the Berkman Center for Internet and Society at Harvard University, thinking about how to ensure that data are protected for the promised time period. Among other concerns, he worries for philanthropic donations of papers or personal effects to libraries and the like. Often, such donations are made with a proviso that they not be revealed for a fixed period of time. “That type of donation will not happen if their stuff is only one subpoena away from disclosure,” he says.