I've just finished reading On Guard: Preventing and Responding to Child Abuse at Church by Deepak Reju. While much of it was what I had heard before through professional development, it was still worth the read to place child protection issues firmly within the unique context of a church organisation.
We are fools - worse than that actually, because to ignore the truth is reprehensible - if we think it could never happen in our church. We cannot rely on the idea that we'd know if someone was a danger. You never do.
If you work in a church, volunteer for a church or go to a church regularly, this should be on your reading list. I'll certainly be pressing my copy into the hands of all our church leaders.