18 USC Sec. 1203
TITLE 18 - CRIMES AND CRIMINAL PROCEDURE
PART I - CRIMES
CHAPTER 55 - KIDNAPPING

STATUTE

(a) Except as provided in subsection (b) of this section, whoever, whether inside or outside the United States, seizes or detains and threatens to kill, to injure, or to continue to detain another person in order to compel a third person or a governmental organization to do or abstain from doing any act as an explicit or implicit condition for the release of the person detained, or attempts or conspires to do so, shall be punished by imprisonment for any term of years or for life and, if the death of any person results, shall be punished by death or life imprisonment.

Is this DIFFERENT than CPS SEIZING the children from their homes and then FORCING the parents UNDER THREAT of Termination of Parental Rights (TPR) to compelled classes, therapy sessions, meetings, "white glove" home inspections for dust bunnies and cheerios on the floor and all the other hoops parents are put through?  

Especially when it is presented as part of the contingent "hostage release" and either implied as being "possibly helpful" or expressly stated as a "requirement" for getting yourself and child(ren) out of the system.