If Turkey wanted to invade Iraq (Kurdistan) to eradicate the PKK, the U.S. has already set the precedent in Iraq and Afghanistan. The PKK has been branded as a terrorist sect. What makes the invasion of Iraq by Turkey any different?

If Turkey is smart, they will use economic sanctions and diplomacy to solve the problem. Maybe they will show the world that there are better ways of dealing with terrorists than invading a nation.

Then again...It would make it easier for the U.S. to withdraw from the rest of Iraq if they had to retreat to Kurdistan in the north in an effort to secure the border. It would also help the U.S. to 'save face' if they were to save the Kurds from those so-called,'genocidal' Turks.