For gods sake, even Wikipedia offers better and more accurate language than you and Salim. The pashtun are all over Pakistan, and the fighting is going on with a small number of residents of the Tribal belt, not even all, so it is completely inaccurate to refer to the militants as "pashtun".
With respect to the bombings, and the potential for a cessation in dialog, that has already happened. The FC and PA has been pussyfooting around the militants, reacting only when attacked (primarily the FC), negotiations with the militants have been carried out, and the only thing that has happened is that they have gotten bolder.
This isn't a simple "give me roads, schools and hospitals" demand - what is being fought for is the imposition of an ideology whose cruelty, if imposed, would render minuscule, the damage resulting from this war.
The Taliban have articulated their demands -a withdrawal of "foreign forces and their puppets" and " an imposition of an Islamic constitution" which they just released. Reading the salient points of that document leaves no doubt that it is a demand that must never be accepted.