http://www.jungewelt.de/2007/06-16/019.php
(for not Germans: It's an article about CIA-operatives getting caught with plastic explosives at Heiligendamm because of German security)
PS: ...and yes, the source is a paper "observed" by German Verfassungsschutz. At least they mention it in their annual papers... It was the GDR-paper for the SED-Party youth but founded allready during the 3. Reich for the Hitlerjugend.