An ash cloud from the Calbuco volcano in southern Chile that
erupted unexpectedly is blowing into Chile and Argentina,
forcing the cancellation of flights from nearby cities in
both countries and blanketing residents in ash.
A US drone strike in January targeting an al Qaeda compound
in Pakistan near the Afghan border inadvertently killed an
American and an Italian who had been held hostage for years
by the group, US officials say.
The family of Michael Brown has filed a wrongful death
lawsuit against the city of Ferguson, seeking unspecified
damages and police reforms after the black teen's killing by
a white policeman prompted a national debate on law
enforcement and race.
Biologists in China reported carrying out the first
experiment to alter the DNA of human embryos, igniting an
outcry from scientists who warn against altering the human
genome in a way that could last for generations.