kebabking
Not a Girly Swot, but I like them....
It's a tad alarmist and hyperbolic - Turkey, as Germany and a number of other NATO countries did during the cold war, said that if they were not included in the US's nuclear umbrella (which meant the protection afforded by playing host to US nukes and being included in the dual key-dual use agreements) they would be forced to develop their own nukes.
The US agreed, and nukes were placed in those countries under the dual key-dual use arrangements.
The 'hostage' thing is simply that Turkey is saying exactly what it said before the nukes were placed in Turkey - that without US/NATO nukes being on its territory, it would develop its own. It does not mean that there are Turkish soldiers standing outside the bomb dumps saying 'you can't leave'.