Could also be one of the 4 given to Turkey to 'eradicate' Kurdish PKK even in Iraq. There are over 1500 US personnel in Turkey-where U-2 flights operated from or to. Bonn meeting is tomorrow and now there are items in German sites http://www.bild.de/politik/ausland/afghanistankrieg/so-macht-pakistan-jadg-auf-deutsche-soldaten-21360134.bild.html (Iran is a player with Pak/Tal/ISI/AQ ..ISAF Geheimpapier and in Der Spiegeel http://www.spiegel.de/politik/ausland/0,1518,801521,00html Geheimdokumente unterstuetzung fuer Taliban- NATO prangert Pakistan und Iran an. It seems all the players are not on the same page- these are items planted guess who trying to establish a casus belli. The very same people also planted items about Quaddafi being Jewish in HuffPost ditto Ahmedinejad. Germans also have the drones mentioned.
Roadside bomb kills five border officers in western Iraq (AP)
from the article: Report: Iran shoots down U.S. reconnaissance drone