In August, Montgomery and Frederick counties unveiled school bus cameras, designed to catch dangerous drivers illegally passing while children are present.

Prince George's County officials hope to unveil a similar program in August 2013.

"We are trying to work with the school board to approve a plan to put cameras on 20 buses," says Prince George's County Major Robert V. Liberati, who runs the traffic camera program.

A study from the Maryland Department of Education found 4,657 drivers illegally passed a school bus in one day in April.