The U.S. has praised Ebola-hit West African nations and foreign donors for their efforts in tackling the outbreak.
Guards guilty of killing 14 Iraqis in a square in Baghdad in 2007.
Julia Pierson steps down following several high-profile security lapses.
Suspect had 800 rounds of ammunition and a machete in his car.
President Obama has ruled out a combat mission in Iraq.
Ceremonies marking 13 years since attack held in New York, Washington.
President Obama to set out "game plan" in speech Wednesday.
Two men were convicted of raping, murdering 11-year-old girl.
Suspect eluded capture for seven weeks after fatal shooting.
Antares combusted seconds after leaving a launch pad in Virginia.
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