I heard a report about this on the eve of Yom Kippur on the Today programme (I realise I seem to shoehorn some kind of shout out to the BBC in every piece I do) which you can listen to here but was unable to find any more coverage until today (proving my google skills aren’t up to much, the BBC [oh, HAI BBC] posted a report on the 10th). Harriet Sherwood in the today’s Guardian has also broached the subject.
Question 2, no really, why are they doing this? It appears the screaming at girls, pupil's parents have reported an increase in bed-wetting, nightmares and anxiety in their daughters, is essentially part of a turf war. The school building is on the edge of an ultra-Orthodox area and the Haredim believe their children should have it instead. A mother of an Orot school pupil worries the Haredim men, "will do almost anything to get what they want".
Question 3, what is being done about this? There are some Haredim women who have also taken to coming to the school gates. In protest against the actions of these men from their small community, the women tell the girls they are beautiful and give them flowers. The leaders of the Haredim community have yet to admonish these zealots, who are continuing to gather outside the Orot school gates.