Shortly after, Leutheusser-Schnarrenberger sent two letters to the British justice secretary, Chris Grayling, and the home secretary, Theresa May, stressing the widespread concern the disclosures about the GCHQ Tempora programme triggered in Germany and demanding to know the extent to which German citizens have been targeted. At the same time, Leutheusser-Schnarrenberger demanded that the German intelligence service BND provide a full explanation after it admitted to passing on massive amounts of so-called "metadata" to the NSA. When the United States approached E.U. justice ministers in October 2013 about signing an agreement to extradite former NSA contractor Edward Snowden to the U.S. should he set foot on their soil, Leutheusser-Schnarrenberger refused to sign because she was not certain that Snowden had broken any laws and because he might make a good witness in a German parliamentary inquiry.