At the end of April, Matt McKnight was driving Bessie, his Westfalia campervan, on State Route 240 in Washington when he encountered something he hadn’t wagered on: dozens of tumbleweeds whipped into a vortex, and heading right for the van. McKnight is a Seattle-based journalist for Crosscut, an independent news site, and has been traveling across the state to cover the COVID-19 crisis. Bessie is a good companion on these journeys—McKnight can load her up with provisions and then sleep in the back at night, so that he’s not imperiling…