A New Way to Differentiate

I was speaking with my best friend this morning, a Chareidi fellow who lives in Netivot. Apparently there are posters all around the town, I think they call them kol korehs, that advise good God-fearing chareidim not to speak to those of the Dati Leumi persuasion. Apparently we're worse than chilonim for them. The secular Israels are at least honest in their lack of religious practice. We, on the other hand, conceal our kefirah in a false guise of religiosity.
It's not suprising to read that there are continuing conflicts between the two communities, as usual stirred up by the Chareidim:
Growing tensions between ultra-Orthodox and religious residents in the town of Beit Shemesh, near Jerusalem, have recently escalated into violence as three teen girls were beaten up by haredim who claimed they were "immodestly" dressed.
The incident was the last in a series of reported attacks by members of the Haredi Community faction on their religious neighbors, prompted by the latter's' alleged "promiscuity" and negative influence on haredi children.
First of all, note the language. The Chareidim are "ultra-Orthodox", a term which some members of that community don't like. The Dati Leumi, on the other hand, are merely religious. What the dividing line between the two is remains unstated by the writer. Is it the uniform? Or the type of hat/kippah? Or is it whether you call your father Abba or Tatty?
And how immodest these girls were also remains unofficially documented. According to the parents, they were wearing modest, frum attire which makes one wonder about the motives of the attackers. Were they drunk, disorderly or just looking for easy victims to beat up on?
Or are they followers of the Burka Babes of Ramat Beit Shemesh who feel that a woman showing her face in public is just plain not tznius?