"Throughout American history, people have persisted," says syndicated radio host and author Thom Hartmann. Gloria Browne-Marshall, law professor and author of ‘A Protest History of the United States’ weighs in on why “we have to make protest an investment into generations and people we don’t know” and the various forms of protest and “ways in which we can voice our opinion” can take. "The power of unity is what we need to see right now,” says Browne-Marshall.