3 companies helping US airports manage crowds, promote social distancing, and find parking for unused rental cars as travel picks up

· Safety is a growing concern as the number of people at airports steadily rises: In early August, more than 700,000 travelers passed through TSA, a significant increase from 87,000 people in April.
· Airports are implementing some low-tech safety measures, like protective plastic screens and new signage, to mitigate health...