This is documented http://msdn.microsoft.com/en-us/library/bb675177.aspx in the Global Namespaces and Embedded Expressions section that it won't work, but the article doesn't provide a workaround or solution. I had this need before too and just through trial and error, was able to get it to work by creating the element in advance with the namespace in tow, like this.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.