NEW YORK (Standard&Poor's) Jan. 17, 2013--Standard&Poor's Ratings Services said today that its 'BBB-' senior debt rating on Fairfax Financial Holdings Ltd.'s (FFH) senior notes is unchanged following the company's announcement that it has increased the size of the issue to C$450 million from C$200 million. This series of notes was originally issued for C$200 million on Oct. 15, 2012, with a 10-year term and a 5.84% annual coupon paid semiannually. The current C$250 million notes are an expansion of this series and have identical terms. The company will use the proceeds of this issue to increase its cash, short-term investments, and marketable securities position, to retire outstanding debt and other corporate obligations, and for general corporate