News roundup: U.S. economy grew at 3.2% rate in last quarter of 2013 … ExxonMobil’s Q4 profit dips 16% to $8.35 billion … Facebook now wants to be your ‘Paper’

By the numbers: The U.S. economy grew at a 3.2% annual rate in the October-December quarter on the strength of the strongest consumer spending in three years, an encouraging sign for 2014. The fourth-…