The US state of Kansas has approved science standards for public schools that cast doubt on evolution. The Board of Education's vote, expected for months, approved the new language criticising evolution by 6-4. Proponents of the change argue they are trying to expose students to legitimate scientific questions about evolution. The Kansas decision came as voters in Pennsylvania replaced all eight school board members who approved a similar policy in some of the state's schools. Since October 2004, schools in Dover, Pennsylvania, have been obliged to read out a prepared statement on intelligent design in biology classes. Teachers have been...