These undated heat maps show the number of pieces of communications data the NSA gathers per country in a particular 30 day period, divided into telephony (DNR) and internet (DNI) metadata. Details in the second map refer to a period in January 2013 and third to a period ending in February the same year: see the Guardian article Boundless Informant: the NSA’s secret tool to track global surveillance data, 11 June 2013, the Der Spiegel article How the NSA Targets Germany and Europe, 1 July 2013, the O Globo article Espionagem dos EUA se espalhou pela América Latina, 9 July 2013, the book No Place To Hide, 13 May 2014 and the Der Spiegel article Spying Together: Germany’s Deep Cooperation with the NSA, 18 June 2014.