Police arrest St. Louis Post-Dispatch reporter Mike Faulk in September 2017. Faulk is one of at least 10 journalists detained in the city late last year when police used the tactic of kettling during protests. (David Carson/St. Louis Post-Dispatch)
Police arrest St. Louis Post-Dispatch reporter Mike Faulk in September 2017. Faulk is one of at least 10 journalists detained in the city late last year when police used the tactic of kettling during protests. (David Carson/St. Louis Post-Dispatch)

Journalists covering protests in US risk getting caught up in police kettling tactic