An estimated 500,000 people, largely youth, demonstrated in Washington, DC on March 24 against the continued mass shootings at schools across the country. Hundreds of thousands more mobilised in about 800 cities and towns.
The spark that lit the pent-up tinder of anger against school shootings — of which there have been 18 since January — was the response to the February 14 massacre at Marjory Stoneman Douglas High in Parkland, Florida.