The most complete public accounting of the abuse so far came in 2012 when the Los Angeles Times published a searchable database of 5,000 files and case summaries that are part of the Scouts’ blacklist known as the “perversion files.”

Seven years later, more details are emerging about the scope of sex abuse in the youth organization. A researcher hired by the Scouts to analyze records from 1944 to 2016 testified earlier this year that she had identified 7,819 suspected abusers and 12,254 victims.

But even those numbers grossly understate how many molesters infiltrated the Scouts’ ranks over the years, according to lawyers who have sued the organization on behalf of hundreds of abuse victims. Most predators were accused of abusing multiple boys, they noted, and many instances of abuse were never reported.