The leader of the Karthago band received an assignment when he picked up his passport, thus he got his 6th card.

Ferenc Szigeti, leader of the Karthago band, has a so-called 6-os card in state security files, indicating he was monitored by the authorities. He confirmed attempts to recruit him in 1988 but stated he was never successfully enlisted. The documents reveal that he worked as a music editor at Hungarian Radio and was approached by a police officer to persuade a colleague not to support the SZDSZ during a concert. Szigeti did not promise anything and did not discuss it with his friend.