The number of child bombers increased more than tenfold last year, the U.N. says.
Negotiations with Boko Haram will continue, despite recent violence.
A high-level security source confirmed the escape, AFP reports.
"We don't have independent information," said Jen Psaki on claims the girls had been located.
First lady Michelle Obama is more aggressively wading into policy fights.
About 80 troops have been sent to Chad to help find hundreds of Nigerian girls.
A 1997 law bars the U.S. from providing training to militaries accused of human rights violations.
Jay Carney said the drones were unarmed and the U.S. was not considering deploying forces.
The U.S. is also sharing satellite imagery with Nigeria, an official said.
Foreign policy "has to be more than hashtags and selfies," he said.
Lawmakers want to help, but don't want to send troops.
New legislation would make reducing violence against women a State Department priority.
The attack from Boko Haram militants on the Nigerian town of Baga left as many as 2,000 people...
A Twitter hashtag is being used to attack Levick for its work with Goodluck Jonathan.
Nigerian President Goodluck Jonathan has said he will not negotiate with terrorist organization...
Nigeria's defense chief said he feared attempting to rescue them could cause their death.
“They would not welcome Seal Team Six, I believe,” said Sen. Levin.
Commerce Secretary Penny Pritzker announced Wednesday that top U.S. and African business leaders...
Sen. Chris Coons criticized Nigeria's response to the mass abduction of 300 girls.
“I would use every tool that we have to rescue these young girls,” the senator said.
Jay Carney said a team of more than two-dozen was "up and running at our embassy.”
John Campbell said it was unlikely all the kidnapped schoolgirls would be rescued.
Michelle Obama has called for the safe release of the nearly 300 kidnapped schoolgirls.
PHOTOS | Protests erupt in response to kidnappings.