The Supreme Court of the United States released a decision in favor of school choice programs that upheld the Arizona tax credit Below are a few articles to review about the decision:
http://www.redefinedonline.org/2011/04/enjoy-the-victory-but-remember-who-needs-our-help-the-most/
http://www.cato-at-liberty.org/victory-supreme-court-upholds-education-tax-credits/