What action is defined as not disclosing knowledge of a crime involving a minor?

The action defined as not disclosing knowledge of a crime involving a minor is indeed best captured by the term "failure to report." This concept refers to the legal obligation that individuals may have, particularly professionals working with children, to inform authorities when they become aware of suspected abuse or criminal activity involving minors.

In many jurisdictions, including Illinois, laws exist that mandate professionals, such as teachers, doctors, and law enforcement officers, to report any suspicion of child abuse or neglect to the appropriate authorities. The failure to report can have serious implications, both for the safety of the child and for the individual who holds the knowledge but does not take action.

The context surrounding this obligation is further underscored by the urgency and seriousness of protecting minors from harm, reflecting a societal commitment to safeguarding the welfare of vulnerable populations.

While aiding and abetting, concealment, and negligence could relate to actions taken in connection with a crime, they do not specifically address the legal obligation to report knowledge of a crime involving a minor in the way that "failure to report" does.