Grenville Fortescue - please don't tar us all with that brush! There are more desirable and less desirable parts of any location. Would you ban your daughter from going to London just because a soldier was murdered in Woolwich some weeks back?
If you were/are still trying to control your daughter at 22, then perhaps you are a "helicopter parent".. you seem to have missed the opportunity of explaining rights/wrongs, risks/etc in the previous 21 years. No, I'm not condoning what happened to her friend(s), far from it, but if we wrap our kids in cotton wool and don't let them fail etc then we are doing them a disservice.