NCMEC is some kind of front for child traffickers. During pizzagate, mentioning the name 'Brian Podesta' on twitter would get people suspended/banned. Not sure if he is still there, but he worked at the NCMEC, and I believe held a security clearance. While I don't think it was exactly determined what goes on, they have a huge database of child pornography, and probably pick and choose which missing children cases are, and are not, fully investigated. It needs to be closed down or taken over by an actual law enforcement agency, which it is not.
"Presently, Congress allocates $50 million per year to the Center. But how is the money used? And how does NCMEC work? NCMEC describes itself as a Missing Children Clearinghouse, meaning that it disseminates information, but plays no active role in the actual recovery of missing children. Today, NCMEC has hundreds of staff and its salaries alone are running close to $30 million a year."
geraldinehunt.blogspot.com/2017/03/ncmec-will-not-investigate-your-missing.html