That nobody useless into and case the agreement falls apart and we have lots of cases where that is an example appeared north korea and another example of the Different Levels of the iraq issue in the bush and obama in frustration. Obama in many ways executed the drawdown plan but the seniorlevel engagement nobody watched the issue were a few years. This matters a lot. Also another example is the clayton Bush Al Qaeda here this is a problem in the u. S. Government we have and have to deal with. I just end i just had to point out one other thing. We talk about risk of the p5 1 die. The iranian have cheated on their treaty obligations for 30 odd years. It is not at all outside of their capacity to cheat intentionally, have somebody do some and theyre not supposed to do and become a bigger problem. A variety of things that never inside that can make the deal fall apart too. Theres to be noted we were thinking more about her own perspective but certainly we have to make sure they do their