Zak Brown threw his support behind the FIA's controversial move to ban unapproved political statements from Formula 1 drivers and believes recent protests had got "out of control".
Lewis Hamilton and Sebastian Vettel are among the drivers who have used their platforms to highlight social injustice and other causes. Vettel has campaigned for gay rights and environmental measures while Hamilton famously wore a T-shirt calling for the police officers who shot dead African-American woman Breonna Taylor to be arrested.
Earlier this month the World Motor Sport Council voted to change the wording of the International Sporting Code (ISC), meaning any future protests not pre-approved in writing will be banned. The FIA said the change had been made "to align itself to the practices of other similar international sports organisations such as FIFA, IOC and FIBA on the matter of neutrality".