Were the "State" to impose its will regarding the Seal of Confession, the Church would be forced to create a mode of confession which would not involve the seal.  Grave crimes against Humanity, and the Community of the Faith, and God would be subsumed in innocuous phrases like, "I have gravely sinned, through my fault, my fault, my most grievous fault. . . " In the absence of any specific crime being named, the priest would entrust the penitent to the mercy of God and have no other recourse than to pronounce the Absolution.  

This might not be the best way to celebrate the Reconciliation of Penitents, but it may be the only way available to the Church, if the Seal of Confession is neither recognized nor supported by the "Nation State".  In a world of hyper surveillance, I find it amazing that any one makes an aural confession of any sin, let alone the horrendous crimes against God and people that we are discussing.