Did someone mislead the PM about the Ankara bomber?

According to Turkish government spokesman Numan Kurtulmu?, the name of the suicide bomber is irrelevant. The only relevant thing is the fact that the terrorist act on Feb. 17 that killed 29 people (after another injured person lost their life on Feb. 23) in Ankara was carried out by both the outlawed Kurdistan Workers' Party (PKK) and the People's Protection Units (YPG). The YPG is the military wing of the Democratic Union Party (PYD), which is the Syrian sister of the PKK.

That wasn't the case on Feb. 18. Back then, Prime Minister Ahmet Davuto?lu confidently announced that the suicide bomber was Salih Neccar, born in Syria in 1992 and affiliated with the YPG. Pointing out that the U.N.'s representative for Syria had said a day before that the Bashar al-Assad regime supported both the PYD and the YPG against the Islamic State of Iraq and the Levant (ISIL), Davuto?lu said Damascus was responsible for the attack. 

That had also been stated on Feb. 17 by Turkish President Tayyip Erdo?an, who once again called on U.S. President Barack Obama to choose between either NATO ally Turkey or "the terrorist PYD." By then a number of U.S. officials, including Vice President Joe Biden, had stressed to Ankara that although Turkey remains an ally, they did not consider the PYD to be a terrorist organization like the PKK and they need the PYD to fight against ISIL in Syria. Turkish security sources say that in confidential meetings U.S. officials have told them that they actually see no difference between the PKK and the PYD - from the joint use of militants to weapons - but they cannot say so in public because of the Obama administration's policy. 

That difference of opinion over the PYD remained unchanged by the recent one-hour, twenty-minute telephone...