 The term was first used specifically in reference to the practice by Five Eyes member, the National Security Agency of the United States of America.It is unclear how often these programs and methods are used in comparison to other Five Eyes initiatives such as Optic Nerve (GCHQ), and XKEYSCORE.A leaked NSA document from October 2012 identified six people, all Muslims, whom the document termed "radicalizers" and presented as potential targets of this method.