As the Supreme Court opens its 2010-2011 session today, we welcome a guest post from Marc Stein, author of Sexual Injustice: Supreme Court Decisions from Griswold to Roe. Focusing on six major Supreme Court cases, Sexual Injustice examines the more liberal rulings on birth control, abortion, interracial marriage, and obscenity in Griswold, Fanny Hill, Loving, Eisenstadt, and Roe alongside a profoundly conservative ruling on homosexuality in Boutilier during the 1960s and 1970s. In this post, Stein reviews some lessons from those earlier cases to help put the Supreme Court's upcoming gay rights cases into historical...