While the tax probe by the National Tax Service (NTS) into major media outlets that criticized the Kim Dae-jung administration was under way, the news came out that the National Intelligence Service (NIS) may have eavesdropped on the media. On February 8, 2001, at the office of Dong-A Ilbo in Sejong-no, Jongno-gu, Seoul, which had been a main target of the tax probe, officials from the NTS are investigating various accounting documents.