Ladders on top of a van crashed into a school bus this morning, shattering glass in two rear windows, which fell on students. No one was cut or otherwise injured. Hall County School Bus 2410 was carrying students from Chestatee middle and high schools and had stopped at the intersection of Ridgeway and Skelton roads when a van with ladders strapped on top backed out of a driveway and the ladders hit the bus.