Metals found in such everyday electronic items as mobile phones are helping to fund a bloody conflict in Congo.
Mexico has been involved in a crackdown on narcotics trafficking cartels that have been fighting turf wars over smuggling routes into the U.S.
More than 1.2 million people are in settlements, and close to 500,000 people have left Port-au-Prince for outlying regions.
Radio Soleil, the Catholic radio station in Haiti, resumed broadcasting on Jan. 24 from a makeshift studio in the back of a van.
Bishop William F. Murphy of Rockville Centre, N.Y., called the attacks "false" and "even calumnious.”
“Achieving our objectives in Afghanistan and Iraq has moved to the top of the institutional military’s budget priorities,” Secretary of Defense Robert Gates said.