Yen on defensive on US fiscal worry, helps Nikkei

* Yen remains on defensive, giving boost to Nikkei. * MSCI Asia ex-Japan little changed. * Most Asian markets closed for Christmas holiday. Uncertainty over whether U.S. lawmakers will strike a deal by an end-of-year deadline to avert a severe fiscal retrenchment undermined the yen and bols…

Go here to read the rest: 
Yen on defensive on US fiscal worry, helps Nikkei