User blog comment:Rassilon of Old/New Young Justice in March/@comment-64.247.102.133-20120129154923/@comment-64.247.102.133-20120129155211

To add to that no adults means no guards at Belle Reve, or any other facility holding younger villains. Icicle Junior is 17 so he'll still be around. While Mammoth, Shimmer, and the Terror Twins are all 18 so they may or may not be depending on the cut-off age.