WASHINGTON — President Bush thanked abortion opponents Monday for helping to defend his "culture of life" agenda and for pursuing "a noble cause" that he hopes will persuade other Americans to the "rightness" of their effort. "You believe, as I do, that every human life has value, that the strong have a duty to protect the weak, and that the self-evident truths of the Declaration of Independence apply to everyone, not just to those considered healthy or wanted or convenient," Bush said by telephone to demonstrators gathered in Downtown Washington before a march to Capitol Hill. "These principles call us...