News / USA

What Is Metadata?

Copy of U.S. Foreign Intelligence Surveillance Court order requiring Verizon on an "ongoing, daily basis," to give the National Security Administration (NSA) information on all landline and mobile telephone calls of Verizon Business in its systems.
Copy of U.S. Foreign Intelligence Surveillance Court order requiring Verizon on an "ongoing, daily basis," to give the National Security Administration (NSA) information on all landline and mobile telephone calls of Verizon Business in its systems.
VOA News
According to an article in The Guardian, US phone communications giant Verizon was ordered to provide the National Security Agency 'metadata' on all calls going through its network, within the United States and with other countries. The collected 'metadata' does not contain actual conversations, but it still provides a lot of information that can be used in various ways.

The term "metadata" is composed of two words - Greek 'meta' meaning 'behind' and Latin 'data' meaning facts or details. So metadata refers to the 'data behind data'. In this particular instance it refers to the data embedded in the phone signal.

Metadata contains phone numbers, area codes, GPS data and time and duration of calls. It may also identify phone models and other technical information.

Once in the possession of the NSA the data can be stored in data warehouses - huge memory banks, where it can be analyzed and cross-referenced by sophisticated software which can decipher usage patterns.

The professional term is 'targeted data mining'. However, there is no evidence that collecting and analyzing it are effective tools.

In an interview with VOA, Elizabeth Goitein, co-director of the Liberty and National Security Program at the Brennan Center for Justice, says the NSA is collecting much more data than it needs.

"There's simply no way that those [data] are all relevant or necessary to an authorized investigation. So its' too broad," Goitein said.

She added that If the government wants to know who the suspected or known terrorist is communicating with, it can do that by getting the telephone records of the individuals it wants to investigate.

Without confirming the story, a senior Obama administration official on background defended the practice as part of the provisions of the Patriot Act, the law passed by Congress after the 2001 terrorist attacks on the U.S.

You May Like

Video Obama to Send 3,000 Troops to Liberia in Ebola Fight

At Centers for Disease Control and Prevention, President says US will take leadership role for a global response to deadly Ebola virus that is ravaging West Africa More

Video China Muslims Work to Change Perceptions After Knife Attacks

Muslims in Kunming say that they condemn the violence, it is not a reflection of the true beliefs of their faith More

Humanitarian Aid, Equipment Blocked in Cameroon

Move is seen as a developing supply crisis in West Africa More

Featured Videos

Your JavaScript is turned off or you have an old version of Adobe's Flash Player. Get the latest Flash player.
Enviropreneur Seeks to Save the Environment, Empower the Communityi
X
September 16, 2014 2:06 PM
Lorna Rutto, a former banker, is now an ‘enviropreneur’ - turning plastic waste into furniture and fences discusses the challenges she faces in Africa with raw materials and the environment.
Video

Video Enviropreneur Seeks to Save the Environment, Empower the Community

Lorna Rutto, a former banker, is now an ‘enviropreneur’ - turning plastic waste into furniture and fences discusses the challenges she faces in Africa with raw materials and the environment.
Video

Video West Trades Accusations Over Ransoms

As world leaders try to forge a common response to the threat posed by Islamic State militants in Iraq and Syria, there is simmering tension over differing policies on paying ransoms. In the past month, the jihadist group has beheaded two Americans and one Briton. Both countries refuse to pay ransom money. As Henry Ridgwell reports for VOA from London, there is uncertainty in the approach of some other European nations.
Video

Video Scotland Independence Bid Stokes Global Interest

The people of Scotland are preparing to vote on whether to become independent and break away from the rest of Britain, in a referendum being watched carefully in many other countries. Some see it as a risky experiment; while others hope a successful vote for independence might energize their own separatist demands. Foreign immigrants to Scotland have a front row seat for the vote. VOA’s Henry Ridgwell spoke to some of them in Edinburgh.
Video

Video Washington DC Mural Artists Help Beautify City

Like many cities, Washington has a graffiti problem. Buildings and homes, especially in low-income neighborhoods, are often targets of illegal artwork. But as we hear from VOA’s Julie Taboh, officials in the nation's capital have come up with an innovative program that uses the talents of local artists to beautify the city.
Video

Video US Muslim Leaders Condemn Islamic State

Leaders of America's Muslim community are condemning the violent extremism of the Islamic State group in Iraq and Syria. The U.S. Muslim leaders say militants are exploiting their faith in a failed effort to justify violent extremism. VOA correspondent Meredith Buel reports.
Video

Video Americans' Reaction Mixed on Obama Strategy for Islamic State Militants

President Barack Obama’s televised speech on how the United States plans to “degrade and destroy” the group known as the Islamic State reached a prime-time audience of millions. And it came as Americans appear more willing to embrace a bolder, tougher approach to foreign policy. VOA producer Katherine Gypson and reporter Jeff Seldin have this report from Washington.
Video

Video Authorities Allege LA Fashion Industry-Cartel Ties

U.S. officials say they have broken up crime rings that funneled tens of millions of dollars from Mexican drug cartels through fashion businesses in Los Angeles. Mike O'Sullivan reports that authorities announced nine arrests, as 1,000 law enforcement agents fanned out through the city on Wednesday.
Video

Video Bedouin Woman Runs Successful Business in Palestinian City

A Bedouin woman is breaking social taboos by running a successful vacation resort in the Palestinian town of Jericho. Bedouins are a sub-group of Arabs known for their semi-nomadic lifestyle. Zlatica Hoke says the resort in the West Bank's Jordan Valley is a model of success for women in the region.


Carnage and mayhem are part of daily life in northern Nigeria, the result of a terror campaign by the Islamist group Boko Haram. Fears are growing that Nigeria’s government may not know how to counter it, and may be making things worse. More

AppleAndroid