This edited collection of papers was developed from conference presentations delivered in March 2015 at the Institut d’Etudes Européen, as part of the International Association of Constitutional Law’s ‘Constitutional Responses to Terrorism’ research group. The papers have been updated and formatted in a fairly uniform four-part structure, each dealing with a particular aspect of recent dynamics in US and EU law concerning privacy and data protection under conditions of surveillance. The book’s aim is to ‘improve understanding on both sides of the Atlantic on issues of surveillance, privacy and transatlantic relations’, in the furtherance of ‘human rights, national security and Euro-American unity’ (4). It is divided thematically into five parts, addressing the key issues and developments in contemporary law concerning privacy and surveillance in recent years. In the first section, chapters by Tuomas Ojanen and Christopher Slobogin independently address the basic framework within which EU and US privacy rights are articulated. Ojanen makes a good job of the difficult task of explaining the salient points of the Schrems and Digital Rights Ireland cases. The article is perhaps too brief to fully unpack the precise status of privacy as a European right, which is indeed a ‘bit of a maze’. Privacy after Schrems is not ‘a super-fundamental right that reigns supreme’ (16), yet it does contain an ‘inviolable essential core’ that is ‘not subject to limitations’, while at the same time it is subject to a ‘permissible limitations test’ (21). The picture is complicated further because it was unnecessary for the Court to articulate such a test in detail, so they declined to do so (23). Explaining the implications to experienced EU lawyers while also explaining the basics to US lawyers seems more than one chapter can do.