A puzzling new pattern has taken hold on American roads: pedestrian traffic deaths, which had been on the decline for years, have skyrocketed.Emily Badger, who covers cities and urban policy for The Upshot at The New York Times, discusses her investigation into what lies behind the phenomenon.Guest: Emily Badger, who covers cities and urban policy for The Upshot at The New York Times.Background reading: Why are so many U.S. pedestrians dying at night?The exceptionally American problem of rising roadway deaths.More theories on the rising pedestrian deaths at night.For more information on today’s episode, visit nytimes.com/thedaily. Transcripts of each episode will be made available by the next workday.