Teen Vogue reached out to Jaz Brisack, one of the most well-known salts in the modern labor movement.

To win a union campaign, workers need two critical components: a strong organizing committee and a hammer to bring down on the company if it doesn’t respect the right to organize. The law is not that hammer.

Jaz Brisack, a practitioner in residence at the UC Berkeley Center for Labor Research and Education, said one-day actions aren’t necessarily going to play a role in stopping production or operations. “It has a different, extremely valuable aim, which is putting public pressure and attention on a company.”