Georgia Chief Justice Leah Ward Sears, considered a potential nominee for the U.S. Supreme Court, has drawn criticism from gay rights groups after announcing plans to join a think tank whose founder is an outspoken opponent of gay marriage. Sears, the nation's first black female chief justice of a state supreme court, announced this week she will join the New York-based Institute for American Values when she retires June 30. She has declined to address speculation about a possible nomination to succeed retiring Justice David Souter, who will leave the Supreme Court when it ends its current session in June....