Disclaimer:
Stella is not a legal expert, nor should this video be considered legal advice.
Sources:
https://www.constituteproject.org/constitution/United_States_of_America_1992
State v Gruber:
https://www.mtsu.edu/first-amendment/article/43/state-v-gruber-md-cty-ct
Schenck v US:
https://www.mtsu.edu/first-amendment/article/193/schenck-v-united-states
Clear and Present Danger test – Holmes Jr:
Brandenburg v Ohio:
https://mtsu.edu/first-amendment/article/189/brandenburg-v-ohio
Brandenburg test:
All first amendment cases:
https://www.mtsu.edu/first-amendment/encyclopedia/case-all
Osha Beard Standards:
https://www.osha.gov/laws-regs/standardinterpretations/1996-10-03
Osha Hard Hat Exemption: