Min, most child assaults murders are committed by the mothers- not that they're particularly dangerous, just that they spend the most time with the kids so the law of averages kicks in. Think of the SC woman who dumped her car in a lake with the kids in it, or the Texas woman who admitted to drowning her five kids, one at a time (and will probably get away with it, but that's a whole 'nother rant). I looked at the child murders here in Toronto over the past decade and saw 4 mothers, 2 stepfathers, 1 stepmother. No strangers among the perps. The airline's policy of segregating single males is no different from a lot of other measures seen these days- they were never intended to enhance safety, they are only in place for the sake of lawyers and paranoid parents.