“Asian and Middle Eastern central banks and sovereign wealth funds are increasingly anxious about the safety of their investments in the debt of Fannie Mae and Freddie Mac , despite the assurances of US government officials.”
http://www.ft.com/intl/cms/s/0/1de57e0e-f22d-11e0-b439-00144feab49a.html#axzz1aOF9Vg7e