So is this phenomenon never going to end??
Looking at the details, it can be very heartening for Indians. For over a year (late 2009-early 2010) the primary objective of that section has shifted from "trouble in India" to "influence in Afghanistan".
The hard truth is, the US cannot afford to confront the main enemy - Pakistan.
And Pakistan will never let go of Afghanistan. It is the success of the Section S (owing to the increasingly greater independence from the chain of commands, since it involves higher number of retired officers and civilians than uniform bearers), and somewhat the section C (the one that controls the finances), that forced the US into chalking out a negotiation process, which although involves almost all of the world, keeps Pakistan as the chief negotiator.
The phenomenon is certainly going to end, and no other than the Pakistani Army will end it. But the end result will not be as beneficial to Pakistan's adversaries as was previously thought.
It is a truth that insurgents do bite back, and Pakistani Army knows that too. It will indeed control them so as not to get severely poisoned. However, the prevailing signs show the poisoning may have already taken place. And when an institution like an Army (worse, if it is Pakistani Army) becomes a one man show (ref. 3 year ext. to Kayani), it loses out on the holistic approach of defending the country and focuses on issues relating to none but the institution itself. In plain words, it will be very prone to hijacking by extremists in the coming times.
So, having said all of that, the conclusion we can reach at is that if the US does fly away by 2014 leaving no solid plans for Afghanistan, there will be unprecedented rise in extremism. All the parties (nations) will lose. What will it do to Afghanistan, we do not know. But what will become of Pakistan, we sure can imagine.
Oh, and the nukes will still be safe