i don't regard -- chiarelli talked about it earlier.l problem with paying benefits. that is not the problem. it has do a lot more with the retirement issues and there as i said earlier i think it would be groes grossly unfair to address military retirement without taking on the big ones which are social security and medicare. >> let me me follow up by having commissioner higgins talk because we did quite a bit of analysis and review around that. i want him to talk specific i on that. >> thank you mr. chairman. senator, i believe in a general sense retention today is probably as good as the military has ever seen it. having said that there are select skills that are always been historically very difficult to maintain. some of the stories that you here often are let's say nuclear skilled individuals in the navy are always difficult to retain. because once they acquire once they acquire those skills they are very lucrative on the outside. in recent years in the war years what emerged was the ten year departure of special anticipateoperateo