A CBS News review found growing concerns about dangerous driving near schools in the United States.

All 50 states have programs to make school routes safer and more than 17,000 schools have received government money for safety upgrades, the National Highway Traffic Safety Administration reports – but, according to the National Center for Education Statistics, one in three public school officials still say traffic near their buildings "poses a threat" to students.

For Tom Didone, a former police captain, driving safety is personal. Didone was the police investigator assigned to respond to every deadly car crash in Montgomery County, Maryland.

In 2008, a teen driver with a car full of young friends lost control on a winding road in the county.

Didone responded to the call. One of the pas

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