Your comment implies the US is somehow bound to this agreement for the making of federal laws. This is not the case and never has been.
Are you saying US is not a signatory to the convention?
Are you saying that US is not bound by international agreements, treaties and contracts that it has signed up to, of it's own accord?
Are you saying that US can leave the agreement at any time? (I beleive it can)
Or are you saying that is US breaks the obligations it signed up to, the UN cannot hold it accountable?
In general the US, as the world dominant cultural, military and economic power, signs agreements to bind others, not themselves.