Article 98 Agreements are unlikely to be needed  The prospect of an Article 98 Agreement actually being relied on is slim. It would require the International Criminal Court to prosecute an American for a crime against humanity, or genocide, that takes place in ICC member state. There is next to no chance of the UN Security Council referring a case against America to the ICC as the US has a veto as a permanent member.  The ICC already makes only a highly limited number of prosecutions per year, in obvious cases, and so far all of these have been focused on the developing world. While Article 98 agreements may be unsavoury, the chance of them actually being used to grant someone impunity is low.