It’s the mixing and overlap of the extreme right and those against Italy’s vaccine mandates that are causing worries, even though those opposed to vaccines are still a distinct minority in a country where 80% of people 12 and older are fully vaccinated.

Incited by the political extreme right at the rally, thousands marched through the Italian capital on Saturday and hundreds rampaged their way through the headquarters of the left-leaning CGIL labor union. Police foiled their repeated attempts to reach the offices of Italy’s premier and the seat of Parliament.

The protesters smashed union computers, ripped out phone lines and trashed offices after first trying to use metal bars to batter their way in through CGIL’s front door, then breaking in through a window. Unions have backed the Green Pass as a way to make Italy’s workplaces safer.

CGIL leader Maurizio Landini immediately drew parallels to attacks a century ago by Benito Mussolini’s newly minted Fascists against labor organizers as he consolidated his dictatorship’s grip on Italy.