why wouldn't it be workable if you say the end of the second trimester 27 weeks, third trimester state interests increase. i don't understand why 27 weeks is less workable than 24. >> what i was trying to suggest is a viability line is a workable line. to change it there is a new line for principle had and workable. >> that's stare decisis. i ask as a matter of first principle. >> the viability line makes sense. if the state -- >> it is not constitutionally -- we could say 27 weeks and the second trimester. >> you could but the viability line makes sense given the protection for liberty because it comes from the woman's liberty in resisting state control of her body. once the court recognizes the interest it needs to draw a line as it does in many other