One in four of the more than 3,700 commercial motorcoach and passenger van companies regulated by the federal government has never received a full safety evaluation, according to an investigation by The Boston Globe. Nearly half have not been reviewed in more than two years.
Buses carry nearly as many people as airlines, but receive far less scrutiny. More than 170 people were killed in bus crashes from 2010 to early 2014, while no one died in commercial plane crashes on US carriers during that period.
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