When thousands of protesters descended on Washington in the summer of 2020, many brought with them hand-written posters reading "Black Lives Matter," "Resist" -- hallmark phrases of the historic outpouring of frustration over America's slow-walking progress on racial equality. Nearly two years later, Nadine Seiler is still working to preserve these pieces of history. "People felt it was important to come and put their story there" on the fence at Black Lives Matter Plaza outside the White House, Seiler says. "And I'm glad I was able to stay there to keep their voices." IMAGES AND SOUNDBITES