The bishops knew. Let them know at the USCCB annual conference that we know too.
It is no doubt that the current corruption has been known by the hierarchy for decades.
See C-SPAN talk from 8/7/02
https://www.c-span.org/video/?172623-1/goodbye-good-men
The USCCB website published a report in 2011 that detailed issues (see page 11)
https://web.archive.org/web/20110708121425/http://www.usccb.org/cclv/final_report.pdf
The report called for adherence to the Vatican Congregation for Catholic Education Instruction Concerning the Criteria for the Discernment of Vocations with regard to Persons with Homosexual Tendencies in view of their Admission to the Seminary and to Holy Orders
https://en.wikipedia.org/wiki/Instruction_Concerning_the_Criteria_for_the_Discernment_of_Vocations_with_regard_to_Persons_with_Homosexual_Tendencies_in_view_of_their_Admission_to_the_Seminary_and_to_Holy_Orders
The USCCB website published a report in 2011 that detailed issues (see page 11)
https://web.archive.org/web/20110708121425/http://www.usccb.org/cclv/final_report.pdf
The report called for adherence to the Vatican Congregation for Catholic Education Instruction Concerning the Criteria for the Discernment of Vocations with regard to Persons with Homosexual Tendencies in view of their Admission to the Seminary and to Holy Orders
https://en.wikipedia.org/wiki/Instruction_Concerning_the_Criteria_for_the_Discernment_of_Vocations_with_regard_to_Persons_with_Homosexual_Tendencies_in_view_of_their_Admission_to_the_Seminary_and_to_Holy_Orders