At least he admit it now.
His Couric interview will haunt him but the stories of "did he, didn't he" won't be discussed anymore and THOSE are the longest lasting ones.
This will forever haunt him no doubt but doing this now will save SOME sort of respect for him
I have some respect for him for at least fessing up & admitting he took them. Clemens, Bonds, etc could learn a lesson from A-Rod.