Participatory journalism is all about immersion. Colette Davidson took that to heart in her assignment for today. In a leap of faith that other Parisians (well, mostly foreign visitors) have also made, she plunged into the Seine. The iconic waterway got a glow-up for the Olympics last year, and the city’s mayor has made good on her promise to open some public swimming areas.

We have more serious news in today’s Daily, too, including an on-the-ground look at how Hiroshima’s civic tone may be shifting – in particular, around another kind of participation, in protests. Eighty years after that Japanese city became synonymous with the abomination of nuclear war, it struggles with different views of how that day should define it.

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Also, the imminent shutdown of the Corporation for Public Broadcasting resets key aspects of the U.S. media landscape. Caitlin Babcock explains .