Educators today also acknowledge that the state of education is affected by government policies. Education reform efforts at the policy level are occurring in countries throughout the world. For example, the governments of Australia and New Zealand are setting policies that reflect the growing diversity of their student populations. Policymakers in Canada and Great Britain have established centralized accountability policies for educators. And the government of Singapore is setting new policy to encourage innovation and creativity in hopes of broadening its education content focus. Of course, the U.S. government has issued its own accountability challenge with the implementation of No Child Left Behind, the reauthorized U.S. Elementary and Secondary Education Act.