have a lot more science and information than we did back in the 70s. does that play into tomorrow's argument at the court? >> yeah. you wouldn't think the scientific advances should affect the law but because roe wasn't based on the legal question it really is based on what we now know to sometimes be inaccurate historical and scientific assumptions, it is relevant. when casey decision has pinned abortion access to viability, we know that's a moving standard and as technology gets better that date moves. it doesn't make sense for our law to depend on the advancements in obstetric technology and further reason it doesn't make sense as the current legal standard for law. >> dana: we'll be following you tomorrow as you follow the arguments and we'll be interested in your opinion after that. thank you so much. >> thanks. >> bill: fast tracked we know that and you will get live audio tomorrow, too.