Wikipedia
is a Japanese term for any weekly magazine, including politically provacative weekly tabloid newspapers.
As noted by Watanabe and Gamble in the Japan Media Review and in their book A Public Betrayed, the genre is "often described as bizarre blends of various types of U.S. magazines, such as Newsweek, The New Yorker, People, Penthouse, and The National Enquirer".
Shūkanshi have been a source of anti-semitic articles in Japan, including Shukan Bunshun, Marco Polo, and Shūkan Shinchō, which have repeatedly published articles denying the Holocaust. Shūkan Shinchō was found guilty of libel in Tokyo court for publishing an unsubstantiated allegation of murder by a Soka Gakkai member, and has been criticized for sensationalistic stories regarding a disputed Paleolithic settlement site in Japan. Shūkan Shinchō has also been rebuked for publishing the names and photographs of minors who have been accused of criminal acts, even before their trials began.