This happened in Hebron (al-Khalil) few years ago. In this case when they couldn´t pass the soldiers, they started to study at the checkpoint and refused to go back to home as soldiers ordered. After that soldiers attacked against kids and they teacher and started to beat them.
Unfortunately the same is happening in the West Bank daily - in the checkpoints everyone have to wait whithout any real reason; of course if you don´t think that also in this incident those schoolkids were real danger to the security of Isreal. Those soldiers have all rights to refuse to let anyone to pass - many women have had to get birth on the street and many sick people have died when those zionists just standing beside and watching!