Under the WTO, the Cotton Four have the option of taking the US to court (the Disputes Settlement Body) – and the court will probably rule in their favour. But the WTO cannot force the US to change course. Enforcement is left up to the plaintiffs; should they win the case, the Cotton Four would be entitled to place sanctions on the US. But what use are sanctions from a little group of poor countries against the richest and most powerful economy in the world?