From Texas Standard:
Editor's note: Between the reporting and airing of this story, Austin Resource Recovery's director, Ken Snipes, told the Texas Standard that masks are now provided for employees.
Interstate 35 is a vital transportation artery cutting across Texas, south to north. It stretches from Mexico, through Dallas and eventually ends up in Canada. The highway is essential for keeping goods flowing between the three largest countries in North America – everything from produce to medical equipment is trucked along it. And it's especially important during the pandemic as people are more aware of the vulnerability of the supply chain.