UNITED NATIONS -- The United States has refused to join 85 other heads of state and government in signing a statement that endorsed a 10-year-old U.N. plan to ensure every woman's right to education, health care, and choice about having children. President Bush's administration withheld its signature because the statement included a reference to "sexual rights." U.S. Deputy Assistant Secretary of State Kelly Ryan wrote to organizers of the statement that that the United States was committed to the Cairo plan of 1994 and "to the empowerment of women and the need to promote women's fullest enjoyment of universal human...