The National Transportation Safety Board said Thursday that all new school buses should be equipped with alcohol detection systems to ensure drivers are not intoxicated. That new recommendation comes out of the investigation of a West Virginia crash that led to the amputation of one boy's leg and caused serious injuries to two others. The driver in that rollover crash was sentenced to up to 110 years in prison afterward, but the NTSB says this is not an isolated incident. The number of intoxicated school bus drivers remains small compared with the nearly half million buses on the road, but Kris Poland, deputy director of the NTSB’s Office of Highway Safety, said the danger to students and the public is too great to tolerate.