WikiLeaks made good on a threat to publish five private emails from CIA Director John Brennan’s personal email account on Wednesday. While they contained no bombshells, that could change Thursday with the release of more documents.

The emails, which were dated July 2007 to November 2008, included memos Brennan authored on Iran policy and intelligence challenges in the 21st century; one classified letter from former Sen. Kit Bond, R-Mo., that effectively called on the Select Committee on Intelligence to ensure the legality of waterboarding suspected terrorists; correspondence related to a dispute between the CIA and a company for which Brennan served as CEO called The Analysis Corporation; and a copy of the SF-86 form Brennan completed to obtain a security clearance in 2009.