Someone needs to fact check this story.  First of all, Cub Scouts are organized into Packs.  A Den is a small group of boys in the Pack, and it is commonly made up of boys who are the same age or rank.  There is no point in kicking a kid out of Den.  If a Cub Master has reason to dismiss a kid, he would have been kicked out of the Pack.  Therefore it's obvious that this story is only written based on the testimony of the boy's confused mother.  Any reporter who bothered to fact check with anyone familiar with Boy Scouts would have immediately been informed of this error in terminology.