New documents revealed by alleged NSA leaker Edward Snowden reportedly show how British cyber spies regularly stole secrets from foreign diplomats during the 2009 G20 summit in London.

During espionage campaign, which was reported Sunday by the U.K.'s The Guardian newspaper, England's Government Communications Headquarters (GCHQ) allegedly set up internet cafes outfitted with email interception and key-logging software designed to track any delegates' computer use there. The GCHQ also allegedly hacked into delegates' blackberries to read their emails and gather phone call information.

The documents also reportedly show that the GCHQ's sister organization in the U.S., the National Security Agency (NSA), tried to eavesdrop on Russian leader Dmitry Medvedev as he telephoned back to Moscow via satellite.

One slide that appears to be from a "Top Secret" GCHQ presentation said, "Diplomatic targets from all nations have an MO [modus operandi] of using smart phones... Exploited this use at the G20 meetings last year." According to The Guardian, another slide describes a method of email interception that can allow the spies to read people's email "before/as they do."

As The Guardian noted, the sophisticated espionage techniques appear "to have been organized for the more mundane purposes of securing an advantage in meetings." One slide brags about "recent successes" including the ability to deliver "messages to analysts during the G20 in near real-time... [and] provide timely information to U.K. ministers."

The Guardian, Glenn Greenwald and Laura Poitras

Edward Snowden, seen here in an interview... View Full Size

The revelation on the G20 came just hours before the United Kingdom began the smaller G8 summit Monday. England's Prime Minister, David Cameron, and President Obama both spoke before reporters today at the G8 but did not address The Guardian's allegations or Edward Snowden.

Snowden, who first appeared publicly a week ago to claim he was the source of a series of startling articles on NSA spying that appeared in The Guardian and in The Washington Post, remains in hiding in Hong Kong, where today The Guardian said he will be answering questions from readers.

TIMELINE: Edward Snowden's Life as We Know It

Top U.S. administration officials acknowledged and defended the previous surveillance programs revealed by Snowden. Late last week U.S. officials told ABC News they feared Snowden could defect to China with a head, and several computers, full of secrets. The Chinese foreign ministry reportedly denied that Snowden was their spy today.

A spokesperson for the GCHQ told ABC News of Sunday's report from The Guardian, "We do not comment on intelligence matters."

READ: The Guardian Report on GCHQ's Alleged Diplomatic Spying

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Jay-Z is teaming up with Samsung to release his new album, unveiling a three-minute commercial during the NBA Finals on Sunday and announcing a deal that will give the music to 1 million users of Galaxy mobile phones.

The new album, called "Magna Carta Holy Grail," will be free for the first 1 million android phone owners who download an app for the album. Those who do so will get the album on July 4, three days before its official release, according to a Sunday statement.

Samsung is a leader in the mobile phone market and has been steadily chipping away at Apple's share of the market with its Galaxy phones. The deal with Jay-Z is yet another example of how mobile companies are using music to lure new consumers.

Google has a truly sky-high idea for connecting billions of people to the Internet — 12 miles in the air to be exact — through giant helium balloons circling the globe that are equipped to beam WiFi signals below.

Google will announce Saturday it has 30 balloons floating over New Zealand to provide free Internet access to disaster-stricken, rural or poor areas. Eventually, as the balloons move across the stratosphere, consumers in participating countries along the 40th parallel in the Southern Hemisphere could tap into the service.

Called Project Loon, the experimental program was hatched by engineers at the company’s top-secret Google X laboratory in California’s Silicon Valley that invented driverless cars and eyeglasses equipped with voice-activated computers. Some of those technologies won’t immediately — or ever — make money for the firm. Google said it pursues these “moon shot” ideas with the aim of solving big problems and creating breakthrough technologies that ultimately will bring more users to its services.

These projects also help Google extend its sprawling reach into the lives of global Internet users, amid an intensifying debate over Internet privacy. Already, the company has the leading Web search, e-mail service and Internet video site, while its Android mobile software has become the most popular in the world.

These tools have enabled Google to track a wide range of consumer behaviors, which the company sells to advertisers. In recent weeks, privacy advocates have raised concerns over how much of this data is being shared with the U.S. government.

The balloons also represent another of Google’s forays into the telecommunications business. The company has been setting up Internet connections in Kansas City, Austin and elsewhere that offer speeds 100 times faster than what most consumers have today. Google also offers free WiFi in the Chelsea neighborhood of Manhattan and a few other U.S. cities. Top executives have long complained of the slow expansion of Web connections as a bottleneck to the growth of its business.

Mike Cassidy, the director of Project Loon, said the aim is to provide much cheaper Internet connections around the world. In many African nations, for example, monthly Internet costs are higher than monthly salaries.

“We are focused on an enormous problem, and we don’t think we have the one solution today,” he said in a phone interview from New Zealand. “But we think we can help and start having a discussion on how to get 5 billion people in remote areas” connected to the Internet.

The thin plastic balloons hovering over New Zealand — measuring a few minivans in diameter and barely visible to Earth-bound spectators — use a mix of highly sophisticated and basic methods to deliver Internet connections of at least 3G cellular speeds.

The high-pressure balloons carry antennas, radios, solar-power panels and navigation equipment that talk to specialized antennas on rooftops below. But they do not have motors, and their travel largely depends on wind patterns.

Google has a truly sky-high idea for connecting billions of people to the Internet — 12 miles in the air to be exact — through giant helium balloons circling the globe that are equipped to beam WiFi signals below.

Google will announce Saturday it has 30 balloons floating over New Zealand to provide free Internet access to disaster-stricken, rural or poor areas. Eventually, as the balloons move across the stratosphere, consumers in participating countries along the 40th parallel in the Southern Hemisphere could tap into the service.

Called Project Loon, the experimental program was hatched by engineers at the company’s top-secret Google X laboratory in California’s Silicon Valley that invented driverless cars and eyeglasses equipped with voice-activated computers. Some of those technologies won’t immediately — or ever — make money for the firm. Google said it pursues these “moon shot” ideas with the aim of solving big problems and creating breakthrough technologies that ultimately will bring more users to its services.

These projects also help Google extend its sprawling reach into the lives of global Internet users, amid an intensifying debate over Internet privacy. Already, the company has the leading Web search, e-mail service and Internet video site, while its Android mobile software has become the most popular in the world.

These tools have enabled Google to track a wide range of consumer behaviors, which the company sells to advertisers. In recent weeks, privacy advocates have raised concerns over how much of this data is being shared with the U.S. government.

The balloons also represent another of Google’s forays into the telecommunications business. The company has been setting up Internet connections in Kansas City, Austin and elsewhere that offer speeds 100 times faster than what most consumers have today. Google also offers free WiFi in the Chelsea neighborhood of Manhattan and a few other U.S. cities. Top executives have long complained of the slow expansion of Web connections as a bottleneck to the growth of its business.

Mike Cassidy, the director of Project Loon, said the aim is to provide much cheaper Internet connections around the world. In many African nations, for example, monthly Internet costs are higher than monthly salaries.

“We are focused on an enormous problem, and we don’t think we have the one solution today,” he said in a phone interview from New Zealand. “But we think we can help and start having a discussion on how to get 5 billion people in remote areas” connected to the Internet.

The thin plastic balloons hovering over New Zealand — measuring a few minivans in diameter and barely visible to Earth-bound spectators — use a mix of highly sophisticated and basic methods to deliver Internet connections of at least 3G cellular speeds.

The high-pressure balloons carry antennas, radios, solar-power panels and navigation equipment that talk to specialized antennas on rooftops below. But they do not have motors, and their travel largely depends on wind patterns.

A small group of lawmakers who have consistently but obliquely warned about the collection of Americans’ phone data remain troubled by other aspects of the government’s surveillance programs that remain secret.

And, following the leak of classified records in recent days, they are pressing the administration to release information on the legal rationales for its sweeping collection powers and how it is using any stored data obtained from Americans as part of its counterterrorism efforts.

“So, here I have my Verizon phone, my cellphone, what authorized investigation gave you the grounds for acquiring my cellphone data?” said Sen. Jeff Merkley (D-Ore.), waving his phone in front of Gen. Keith Alexander when the director of the National Security Agency appeared before the Senate on Wednesday.

The leak of a highly classified court order showed that Verizon Business Network Services was turning over all domestic call records and that the government is collecting data on tens of millions of Americans — a situation that an ideologically diverse group of senators and congressmen had long been hinting at.

Demanding public answers to questions they have posed for years, these lawmakers say the administration has not yet provided the level of disclosure Americans deserve.

Merkley, for instance, was referring to the fact that the law under which the phone records are obtained requires reasonable grounds to believe the records sought are “relevant to an authorized investigation . . . to protect against international terrorism.”

How could there be one authorized investigation that enables the collection of “all phone records, all the time, all locations?” Merkley asked. How, he continued, “has the standard of the law been met?”

Some experts believe the government has created a secret umbrella investigation that has facilitated the crafting of court orders to cover all phone records. But the existence of any such investigation and related legal opinions and court orders remains classified.

Alexander declined to discuss specifics, deferring to the Justice Department on the classification question. But he said he thought the government should see “if we can get it declassified and out to the American people so they see exactly how we do it.”

The surveillance programs are authorized by the Patriot Act, a law passed after the Sept. 11, 2001, attacks. Just over two years ago, when the measure came up for reauthorization, some senators said the administration’s secret interpretation of the law was allowing it to sweep up large amounts of data about the communications of Americans.

“When the American people find out . . . they are going to be stunned and they are going to be angry,” said Sen. Ron Wyden (D-Ore.), speaking on the Senate floor in May 2011.

“Millions of innocent citizens are having their records looked at,” said Sen. Rand Paul (R-Ky.) the same month. On Thursday, Paul said he plans to bring legal action against the government over its surveillance efforts.

Recent revelations have provided details about their previously veiled alarm. And the disclosures have refocused attention on equally cryptic warnings about other government surveillance programs involving the collection of e-mail and other Internet data and what critics contend is a “backdoor search loophole” to look through the communications of Americans without a warrant.