Burris arrives at Senate, seeks to take seat   AP NewsAlert   Stocks pare gains following mixed economic reports   Burris determined to take his Senate seat Tuesday   Natural gas shortages slam some European nations   Ex-aide sentenced for role in Detroit sex scandal   Palestinians say strike on 2nd UN school kills 30   AP NewsAlert   Emperor Akihito commemorates 20th anniversary of his reign+      Gov't to compile Japanese version of Obama's Green New Deal+   AP NewsAlert   Palestinians say strike on 2nd UN school kills 12   Gaza conflict spreads to Europe with Jews attacked   Oil above $49 as investors eye Gaza conflict, OPEC   Oil above $49 as investors eye Gaza conflict, OPEC   Stocks rise moderately ahead of data   AP NewsAlert   Stocks rise moderately ahead of data   Travolta family returns to US with son's remains