As a new year dawns, 1 billion people worldwide face difficult challenges. But hundreds of organizations are working tirelessly to help.
The US is pledging to help Nigeria identify those responsible for a series of attacks that left at least 40 people dead on Christmas day.
This year should have been a stellar one for US-Latin American relations, marked by trade deals and Obama's high popularity in the region. Instead, 2011 held a sense of distance between the regions.
Seven towns in Germany have special post offices dedicated to answering children's Christmas letters, which letter writers see as a chance to undermine seasonal greed and instill joy and hope.