Regretably, Turkey proved that they are no longer our allies. Putting the missiles in Turkey would be a very risky thing to do, if there were a crisis with Iran or Pakistan or some other country with newly developed nukes.
There is a considerable risk that they would refuse to let us use them in self defense. The Turks proved that when they strung us along and then stabbed us in the back during the the lead up to the invasion of Iraq.
You are joking. When was the last time they laid siege to Vienna? It's over; Turkey is practically Euro now. Coca-Cola forever and we own their film industry.