“Massive attacks against our supplies such as we’ve seen over the past several days have been rare inside Pakistan, yet the KP [the Khyber Pass] is closed, and all of the sudden the Taliban is roaming wild, destroying convoys at will?” one intelligence official said. “Look at the location of these attacks: they are well out outside Taliban heartlands in the northwest or along the border in Baluchistan. Where is the security? Either the Pakistani military is turning a blind eye to the attacks, or it is directing them, and neither prospect is good.”
http://www.longwarjournal.org/archives/2010/10/taliban_torch_anothe_1.php
Most probably: The Pakistani military is directing them.