From the ICC's standpoint, a simple counter to this would be to have member countries deny entry to any US citizen on the ICC's "needs investigation" list. That

From the ICC's standpoint, a simple counter to this would be to have member countries deny entry to any US citizen on the ICC's "needs investigation" list. That includes heads-of-state and their representatives. Not that I'm advocating for that, but it seems like a solution that would be pretty simple to implement.