For those parents that are concerned about this type of thing this site is a good read but heartbreaking
http://prayforkatie.blogspot.com/
The link you provided was about a child with Hodgkin's Disease that was taken by Child Protective Services for treatment.
With treatment, Hodgkin's Disease currently has approximately an 85% cure rate.
Without treatment, Hodgkin's Disease will be 100% fatal.
Is it your position that parents should be allowed by society to decide whether or not to withold treatment and condemn their children to death in such cases?