Unless a counselor believes, and I mean truly believes, that a single session is going to suddenly stop someone from molesting their own child whom they come in contact with daily, priests should, in my opinion, be covered by the Tarasoff decision. There are similar exceptions in states other than California.
https://psychiatryonline.org/doi/full/10.1176/appi.ajp-rj.2018.130402
In Tarasoff v. Regents of the University of California (1976), the California Supreme Court held that mental health providers have an obligation to protect persons who could be harmed by a patient. The court’s decision mandates that mental health professionals use “reasonable care” in informing authorities or warning potential victims, initially referred to as the “duty to warn,” or by using whatever means deemed necessary, should they determine that a patient poses a threat to a third party.