Transportation costs
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Spirit’s Shutdown Exposes America’s Fragile Travel System
"Affordable travel is not a fallback. It is what makes broad mobility possible."
May 21, 2026
Op-Ed: What Cities Can Do as Micromobility Tariffs Loom
"Let’s treat micromobility like the essential service it is, so that we’re ready for whatever comes next."
Alex Keating
April 23, 2025
