March for Life demonstration in Washington, D.C. (12 images)

Pro-life and pro-choice demonstrators face off during the annual March for Life, protesting the Supreme Court's Roe v. Wade decision that legalized abortion in the United States, in front of the U.S. Supreme Court in Washington on January 24, 2011. UPI/Roger L. Wollenberg

Demonstrators participate in the annual March for Life, protesting the Supreme Court's Roe v. Wade decision that legalized abortion in the United States, in Washington on January 24, 2011. UPI/Roger L. Wollenberg

Demonstrators participate in the annual March for Life, protesting the Supreme Court's Roe v. Wade decision that legalized abortion in the United States, in front of the U.S. Supreme Court in Washington on January 24, 2011. UPI/Roger L. Wollenberg

Demonstrators participate in the annual March for Life near the U.S. Capitol, protesting the Supreme Court's Roe v. Wade decision that legalized abortion in the United States, in Washington on January 24, 2011. UPI/Roger L. Wollenberg