Riots broke out across France after PSG won the Champions League, leaving one dead and hundreds arrested — bad news for French cities and a warning sign for upcoming big events.

• France saw 780 arrests, one death, and a stabbing after PSG's win, with cars and property set on fire in Paris.
• The riots are blamed on failed immigration and integration policy, with rioters themselves boasting they "took over Paris in three hours."
• Macron condemned the violence and promised consequences, but anger is aimed at the government for letting it get this bad.
• The US State Department now rates France, the UK, Germany, and Spain as higher-risk to visit than Poland and Eastern Europe.
• There's worry that the US could see similar chaos during the upcoming World Cup, given how many people entered the country unvetted in recent years.

Outlook: Expect tighter security planning and louder political fights over immigration as the World Cup and other big crowds approach.