Very late to this story,that John Kerry believes that life begins at conception, but he still supports abortion, because he can't be put out to tell anybody that would be wrong.
I think this should be obvious to everybody, but apparently it isn't to those who claim to be personally opposed to abortion, but support abortion-on-demand; Why do we have laws in the first place? All laws restrict human behaviour in some way or another, and ultimately our laws reflect what our lawmakers believe to be right, and to restrict behaviour that they believe to be wrong. If John Kerry truly believes that he shouldn't let his personal beliefs influence his work as a Senator, then he should resign his position in the Senate. After all, who is he to judge?
Of course, that is what is often called anarchy, or what John Locke called the "state of nature", where no government exists to protect the rights of man, and survival is biased in favor the strong and against the weak. When "rights" are made up to allow any behaviour for one's convenience or pleasure, with no regard of the consequences for others, we get closer and closer to the point where government does not protect our rights, the first of which is life itself.