The introduction to the podcast series on NPO radio 1 is:
'Intelligence services warn for knowledge espionage at universities. The intention is not to let high-tech knowledge from Dutch soil fall into the wrong hands. But how do you protect knowledge in a place that is specifically intended for knowledge sharing? And how do you determine who can and cannot be trusted? In 'Vriend of Vrijand (Friend or Foe), science journalist Saar Slegers investigates the dilemmas behind Dutch knowledge security policy. And she wonders: whose safety is actually at stake here? Friend of Enemy is a podcast by Prospektor, Argos (HUMAN/VPRO) and NPO Radio 1 and was created with the support of the NPO Fund and the Special Fund Journalism projects.”