Trouble with rampaging thugs linked to an event held Saturday in Liège, Belgium, led to 850 arrests, 56 injuries, and threats of sanctions from international organizations. What event?

Send your answer by 10 a.m. ET Wednesday to newsquiz@slate.com.

Friday's Question (No. 443)—"Forging Ahead":

Named for the Roman god of fire and metalworking (and a symbol of Birmingham, Ala.), the Vulcans are a loose-knit, eight-member team whose leader trained as a concert pianist and now works out with Stanford's football coach. What is the Vulcans' mission?

"Make their son Tiger the best damn golfer the world has ever known."—Beth Sherman

"To cover for the NYPD when they've decided that a parade is 'hands off.' "—Charlie Glassenberg

"Vulcan's Reveal Mission: More bands like Sleater-Kinney, less like Celine Dion. Stage 1 infiltration of mainstream media outlets has begun."—Jon Drumwright

"Penis? Their leader was a penis? Hahahahaha!!"—Doug Benning

"I don't know. What do you think their mission is?"—Francis "Dr. Freud for a Day" Heaney

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