NEW YORK - The Second Circuit U.S. Court of Appeals on Dec. 20 upheld the approval of a settlement of a class suit accusing Sirius XM Radio Inc. of various violations in connection with the 2008 merger of the only two providers of satellite radio, XM and Sirius (Carl Blessing, et al. v. Sirius XM Radio Inc., No. 11-3696, 2nd Cir.; 2012 U.S. App. LEXIS 25987).