Union membership is at a historic low in the U.S. while public support for unions is on the rise. And in Philadelphia — long known as a blue-collar “labor town” — the kinds of workers organizing has been changing. The Philadelphia Inquirer’s Juliana Reyes, who covers labor and unions, explains why millennials in particular are unions-worker-organizing-philadelphia-20200907.html">driving that shift, which started before the COVID-19 pandemic gave workers’ rights issues new urgency.