Ping Pong!!!!
This would quickly get out of hand...
Barking dogs seldom bite. I think this news piece is more strategic than informative. It is to pressure the US and NATO with a war on Pakistan's eastern front that will deter their anti-Taliban operations if the US:
1) Goes ahad and sells F-16s to Pakistan
2) Doesn't push Pakistan to handover the terrorists we want (especially since the Americans admitted that there are many still terrorists in Pakistan walking freely)
The prospects of America fuelling a war at a much larger scale by selling weapons to Pakistan should hopefully bog down the motion in the US houses to sell F-16s to Pakistan. This coupled with the prospects that China can get its hands on the F-16s that Pakistan gets will increase doubts in the minds of most American politicians.