A day after expressing optimism about the hunt for the missing Malaysian jet, Australia's leader warned Saturday that the massive search would likely continue "for a long time."
"No one should underestimate the difficulties of the task still ahead of us," Prime Minister Tony Abbott said in Beijing during a trip to China.
Abbott appeared to couch his comments from a day earlier, when he met in Beijing with Chinese President Xi Jinping to brief him on the search for Malaysia Airlines Flight 370, which was carrying 239 people - most of them Chinese - when it disappeared March 8 en route from Kuala Lumpur to Beijing.
After analyzing satellite data, officials believe the plane flew off course for an unknown reason and went down in the southern Indian Ocean off Australia's west coast. The underwater search zone is a patch of seabed about the size of Los Angeles.
NASA, SpaceX study launch of supply ship
Officials at NASA and SpaceX were working through the weekend to see whether they could still safely rocket a cargo capsule to the International Space Station on Monday, despite the failure of one of the backup computers in the system that helps dock the pod in space.
While workers continued to prepare for a Monday afternoon launch of the SpaceX supply ship, NASA said a final determination would likely come today.
To fix the backup computer, astronauts need to make a spacewalk. No date had been set for the spacewalk as of Saturday.
Officer kills man who fatally shot daughter
An 86-year-old man shot and killed his daughter at the home they shared in Queens on Saturday, and was then shot and killed by a police officer, police said.
The man called 911 and said he had shot his daughter and his dog. He then threatened to kill himself. When officers arrived, they found him holding a shotgun that he refused to drop, police said.
White House policy on Internet bugs issued
Disclosing vulnerabilities in commercial and open source software is in the national interest and shouldn't be withheld from the public unless there is a clear national security or law enforcement need, President Barack Obama's National Security Council said Saturday.
The statement of White House policy came after a computer bug called "Heartbleed" caused major security concerns across the Internet and affected a widely used encryption technology, the variant of SSL/TLS known as OpenSSL, that was designed to protect online accounts. Major Internet services worked last week to insulate themselves against the bug.
Council spokeswoman Caitlin Hayden said in a statement that the federal government was not aware of the Heartbleed computer bug until it was made public.