At the center of this latest controversy is a 2009 article published by Broyde as a special supplement to the journal Tradition. The article, titled Hair Covering and Jewish Law: Biblical and Objective (Dat Moshe) or Rabbinic and Subjective (Dat Yehudit)?, argues that the prohibition in Jewish law on married women appearing in public with their hair uncovered is a rabbinic, not a biblical, prohibition. A year after the article appeared, the website Hirhurim published a letter purportedly from David Ketter claiming that several prominent Israeli rabbis he had consulted in 1949 had taken a rather lenient view of a married woman's obligation to cover her hair. In 2011, two rabbis published an article in the journal Dialogue For Jewish Issues & Ideas strongly criticizing Broyde's 2009 article. Broyde responded to the Dialogue article through a posting on Hirhurim. As a preliminary point he said:
I want to note additional sources that support my position which have come to light since my article came out. One, a recollection by David Keter of a conversation he had with Rav Shach, tz”l.