Opposing protesters faced off outside the Supreme Court building in Washington on January 22, the anniversary of the landmark 1973 Roe v Wade decision.Video filmed by Brendan Gutenschwager shows pro and anti-abortion rights groups engaging in Washington.Saturday was the 49th anniversary of the Roe v Wade decision in which the Supreme Court declared abortion legal in all 50 states. A case currently before the Supreme Court could potentially overturn the landmark decision. Credit: Brendan Gutenschwager via Storyful