These are the stocks posting the largest moves before the bell.Market Insiderread more
CNBC's Mike Santoli breaks down the aggressive buying of "sure things" and shunning of cyclical and policy risk.Trading Nationread more
The Iranian Intelligence Ministry held a briefing on Monday where they announced the alleged spies were Iranian citizens but trained by the CIA.World Newsread more
Equifax will pay at least $575 million, and potentially as much as $700 million, to settle allegations over its massive over 2017 data breach, U.S. regulators said in a...Technologyread more
Facebook has seen an increase in the median number of comments, likes and ads clicked by users on the service from January to July, according to Audience Insights, a Facebook...Technologyread more
Two traders say Boeing's on the path to recovery.Trading Nationread more
In its latest attempt to build market credibility, China on Monday launched the Science and Technology Innovation Board, or "STAR Market," on which 25 companies were listed.China Economyread more
Bridgewater Associates's flagship fund reportedly posted one of its worst first-half performances in two decades.Hedge Fundsread more
The U.S. will likely emerge the winner in a "cold currency war" that is heating up, an expert said.Currenciesread more
Morgan Stanley maintained its overweight rating on Apple's stock and hiked its price target to $247 from $231, heading into the tech giant's third-quarter earnings on July 30.Investingread more
General Electric is scheduled to report second-quarter earnings at the end of the month.Investingread more
The pervasiveness of consumer technology that can track our every move has left some people scratching their heads as to why something so much more technically advanced, like the Malaysia Airlines jet carrying 239 people, could just disappear from the sky.
Experts say the technology used to track an airplane like the Boeing 777 is state of the art, and leaps and bounds more sophisticated than anything you'll find in a consumer device. But it could have the same weakness that consumer technology has.
(Read more: Passports may be a weak link in airport security)
"GPS and tracking devices only work if they're turned on or if they're not destroyed," said Scott Hamilton, aviation analyst for the consulting firm Leeham Co.
No one yet knows what happened to Malaysia Airlines Flight 370. Hamilton said it's possible the pilot or someone else turned off the transponder, or that the plane was destroyed in a sudden, violent event that also knocked out the tracking system.
There are also secondary radar systems, but Hamilton said those have some dead zones, particularly over large bodies of water.
(Read more: Will MalaysianAirlines investors endure tragedy?)
William McCabe, president of the aviation safety consultancy The McCabe Group, said it's very rare in the modern era for air traffic controllers and others not to know exactly where an aircraft is at all times, because of the overlapping technologies and procedures designed to make flying safe.
"It's hard to know why that stopped," he said. "Normally you can track an airplane extremely precisely, much more than a car."
Still, there has been some discussion about augmenting existing technology with even more advanced systems, such as technology that would transmit in real time all the detailed information experts usually find in a black box long after the catastrophic event.
(Read more: Employees lost onMalaysia flight a blow: Chipmaker)
McCabe said that for now, such technology is quite expensive and may seem cost prohibitive given all the other technology that is used to track aircrafts' whereabouts—and all the other costs associated with running profitable airplanes.
"What is the likelihood that whatever data is there would be needed on all those airplanes flying?" he said. "It turns out, one of the thousands of airplanes in the sky that day needed it."