Cities Changed In 1 Big Way In The 1920s, And We've Been Paying The Price Ever Since

Crowded sidewalks, polluted skies, empty downtowns, buses that don't run, and trains that are rare or late. Many cities have tried to solve these problems for decades, but one of the causes is not so obvious.

FACT CHECK TIME! We noticed this National Highway Traffic Safety Administration report says the figures mentioned at 2:35 of more than 200 deaths and 17,000 injuries are actually the total of all people killed in back-over incidents, not just children. But that report does say about half those deaths were kids age 19 and younger and, well ... adult deaths are pretty sad too, yeah?