The 1856 Paris Declaration, in fact. Also the 1907 Hague Convention. The US was not a signatory to the former, and did not agree to the provision against privat

The 1856 Paris Declaration, in fact. Also the 1907 Hague Convention. The US was not a signatory to the former, and did not agree to the provision against privateering in the latter, so for the US, at least, privateering is still on the table. Argentina, however, was a signatory to the Paris Declaration. Perhaps they can change their minds, but probably they won't for something like this.