repeal of the military s don t ask, don t tell policy. today we expect we ll learn more about how the defense department plans to go about carrying this out and what it will mean for our troops, jennifer griffin is looking into this live, when do you expect it to be repealed once and for all? when will it be in effect. reporter: u.s. military sources tell me that in march or april, secretary gates, admiral mullen and the president will certify that the repeal of don t ask don t tell will not hurt military readiness and that will set into motion an automatic 60 day period in which congress will then look at this before they repeal the law once and for all and will give the military three months to prepare the troops for the change. but, i m told by the end of the summer gatys will be allowed to openly serve in the military. martha? martha: all right, jennifer talk to me about what problems they are still trying to work