I have few words to argue against what I consider to be 'midieval practices' that should not even exist as a thought in 'modern' Western 'democracies' on how to deal with international relations and law. Can you point me at the legal basis for this decision apart from "because we say so"? What crime did they commit? What they did as part of their job is not illegal. The US is not required to join and help actively enforce the court's decisions.
I don't mind differences of opinion. I do mind authoritarian, purely escalatory behavior not fit for a modern society with no rational basis behind it other than rage. There is no educational, pedagogical message behind this. The thought process behind actions like this seems to purely be "We happen to not agree with you, so we are in the right to hurt you" territory. Law enforcement is not meant for punishment for punishment's sake, it is meant to aim for correction. Anything else just creates more polarization and leads to more violence. I thought we had figured that out as civilization. It makes no sense.