"Achieving international cooperation for RFID encryption would probably never work anyway, and of course there are those nations that would be fine letting the algorithms/decoding chips into the wrong hands."
Now, which nations would those be? In my post Double Bluff, I commented on the fact that the British security forces deliberately leaked some technologies to the IRA, playing a devious game they thought they could control. These technologies later led to the death of British soldiers in Iraq.
We can't even trust our own side to look after our own security, or to think through the consequences of their actions.