A number of people are spotted wearing green or waving green flags at abortion rights demonstrations. After the Supreme Court's landmark ruling Friday eliminating the federal right to abortion, a pro-abortion-rights advocate scaled one of the arches of D.C.’s Frederick Douglass Bridge and flew a green banner. Why is green a symbol of abortion rights? This color choice is no accident, as it is a symbol of similar movements previously held in other countries. The Latin American abortion rights movement, also known as the "green tide" or "green wave" has roots in Argentina. Marta Alanis, founder of Catholics for the...