The United States has not (and I don't think it ever will ...at least I hope not)agreed to turn over the responsibility for the safety of its citizens

The US did agree that it would abide by certain rules. It agreed that it would not conduct any first strike attacks unless there is an imminent threat to the US. One of the big reasons the Bush administration is having so much difficulty getting support from other countries and from the UN for it's first strike atack agenda against Iraq, is because it hasn't made a convincing case that Iraq poses an imminent threat to the US.