Showing posts with label communication. Show all posts
Showing posts with label communication. Show all posts

Monday, June 26, 2017

NEWS HOUR BOOKSHELF - "If I Understood You, Would I Have this Look on My Face?"

"For Alan Alda, the heart of good communication is connection" PBS NewsHour 6/21/2017

Excerpt

SUMMARY:  As an actor, educational TV host and founder of a scholarly center for communication science, Alan Alda has used his trademark humor and wit to help others express complicated ideas in accessible language.  Now he's written new book called "If I Understood You, Would I Have this Look on My Face?" Alda sits down with Jeffrey Brown to offer a lesson in communication.

Monday, November 23, 2015

WAR ON TERROR - Terrorists Going Dark

"Terrorists hiding behind impenetrable communication, says FBI" PBS NewsHour 11/18/2015

Excerpt

SUMMARY:  How did the Paris terrorists communicate with each other and elude surveillance?  Investigators are eyeing readily available cellphone technologies that defy cracking by intelligence agencies and even the companies that created them.  Judy Woodruff takes a look at some of the encrypted apps and software being used to evade detection.

JUDY WOODRUFF (NewsHour):  Since the Paris attacks, there’s been lots of concern in Washington and other world capitals over fears of how terrorists can communicate by going dark, namely, using an array of technologies to hide from law enforcement before and after attacks.

In the aftermath of the Paris attacks, investigators are still hunting for answers to how the terrorists communicated with each other and eluded surveillance.  But their eyes are on the now ubiquitous cell phone, which can send coded information using free, readily available technologies that defy cracking by intelligence agencies and even the companies that created them.

In Washington yesterday, the chairman of the Senate Intelligence Committee, Republican Richard Burr, said that very technology was probably at play in Paris.

SEN. RICHARD BURR (R), North Carolina:  Globally, we need to begin the debate on what we do on encrypted networks, because it makes us blind to communications and to the actions of potential adversaries.

JUDY WOODRUFF:  It’s called end-to-end encryption, meaning data gets encrypted or locked away with special codes on one device and is only decrypted when it reaches another.

Popular applications like WhatsApp, Apple’s iMessage, Threema and Telegram all operate this way.  Some of the encrypted apps, like Dstrux, also employ technology that makes messages disappear after they’re delivered, leaving no trace.

Terrorists conceal their work using other sites like JustPaste.it.  It is one place the Islamic State group posts messages and claims of responsibility without having to register.  The TOR browser bounces communications around a distributed network of relays run by volunteers, hiding both the user’s activity and location.

Terrorist groups have even created their own encrypted software specifically to evade detection by the National Security Agency.



"Do governments need access to encrypted messages to thwart terrorism?" PBS NewsHour 11/18/2015

Excerpt

SUMMARY:  Would greater government access to messages sent through secure communication technology help intelligence agencies fight terrorism?  Judy Woodruff gets views from Stewart Baker, former assistant secretary of Homeland Security, and Kate Martin of the Center for American Progress.

Monday, October 26, 2015

THE NEW COLD WAR - Russia, Focus on Sea Cables

COMMENT:  Considering what Russia has done in Syria and Ukraine, this is further prof that the 'Cold War' in on again.  This is what happens when a nation is run by an ex-spymaster.

"RUSSIA’S FOCUS ON SEA CABLES TROUBLES PENTAGON" by DAVID E. SANGER & ERIC SCHMITT, San Diego Union-Tribune 10/26/2015

(this is from the online edition therefore no link)

Increased operations near vital communications link raise worries it could be cut

Russian submarines and spy ships are aggressively operating near the vital undersea cables that carry almost all global Internet communications, raising concerns among some U.S. military and intelligence officials that the Russians might be planning to attack those lines in times of tension or conflict.

The issue goes beyond old worries during the Cold War that the Russians would tap into the cables — a task U.S. intelligence agencies also mastered decades ago.  The alarm today is deeper: The ultimate Russian hack on the United States could involve severing the fiber-optic cables at some of their hardest-to-access locations to halt the instant communications on which the West’s governments, economies and citizens have grown dependent.  While there is no evidence yet of any cable cutting, the concern is part of a growing wariness among senior U.S. and allied military and intelligence officials over the accelerated activity by Russian armed forces around the globe.  At the same time, the internal debate in Washington illustrates how the United States is increasingly viewing every Russian move through a lens of deep distrust, reminiscent of relations during the Cold War.

Inside the Pentagon and the nation’s spy agencies, the assessments of Russia’s growing naval activities are highly classified and not publicly discussed in detail.  U.S. officials are secretive about what they are doing both to monitor the activity and to find ways to recover quickly if cables are cut.  But more than a dozen officials confirmed in broad terms that it had become the source of significant attention in the Pentagon.

“I’m worried every day about what the Russians may be doing,” said Rear Adm. Frederick J. Roegge, commander of the Navy’s submarine fleet “I’m worried every day about what the Russians may be doing.”

Rear Adm. Frederick J. Roegge, commander of the Navy’s submarine fleet in the Pacific in the Pacific, who would not answer questions about possible Russian plans for cutting the undersea cables.

Cmdr. William Marks, a Navy spokesman in Washington, said: “It would be a concern to hear any country was tampering with communication cables; however, due to the classified nature of submarine operations, we do not discuss specifics.”

In private, however, commanders and intelligence officials are far more direct.  They report that from the North Sea to Northeast Asia and even in waters closer to U.S. shores, they are monitoring significantly increased Russian activity along the known routes of the cables, which carry the lifeblood of global electronic communications and commerce.

Just last month, the Russian spy ship Yantar, equipped with two self-propelled deep-sea submersible craft, cruised slowly off the East Coast of the United States on its way to Cuba— where one major cable lands near the U.S. naval station at Guantanamo Bay.  It was monitored constantly by U.S. spy satellites, ships and planes.  Navy officials said the Yantar and the submersible vehicles it can drop off its decks have the capability to cut cables miles down in the sea.  “The level of activity,” a senior European diplomat said, “is comparable to what we saw in the Cold War.”

One NATO ally, Norway, is so concerned that it has asked its neighbors for aid in tracking Russian submarines.

Adm. James Stavridis, formerly NATO’s top military commander and now dean of the Fletcher School of Law and Diplomacy, said in an email last week that “this is yet another example of a highly assertive and aggressive regime seemingly reaching backwards for the tools of the Cold War, albeit with a high degree of technical improvement.”

The operations are consistent with Russia’s expanding military operations into places like Crimea, eastern Ukraine and Syria, where President Vladimir Putin has sought to demonstrate a much longer reach for Russian ground, air and naval forces.  “The risk here is that any country could cause damage to the system and do it in a way that is completely covert, without having a warship with a cable-cutting equipment right in the area,” said Michael Sechrist, a former project manager fora Harvard-MIT research project funded in part by the Defense Department.  “Cables get cut all the time — by anchors that are dragged, by natural disasters,” said Sechrist, who published a 2012 study of the vulnerabilities of the undersea cable network.  But most of those cuts take place within a few miles from shore, and can be repaired in a matter of days.

What worries Pentagon planners most is that the Russians appear to be looking for vulnerabilities at much greater depths, where the cables are hard to monitor and breaks are hard to find and repair.  Sechrist noted that the locations of the cables are hardly secret.  “Undersea cables tend to follow the similar path since they were laid in the 1860s,” he said, because the operators of the cables want to put them in familiar environments under long-standing agreements.

The exception are special cables, with secret locations, that have been commissioned by the United States for military operations; they do not show up on widely available maps, and it is possible the Russians are hunting for those, officials said.

The role of the cables is more important than ever before.  They carry more than $10 trillion a day in global business, including from financial institutions that settle their transactions on them every second.  Any significant disruption would cut the flow of capital.  The cables also carry more than 95 percent of daily communications.

So important are undersea cables that the Department of Homeland Security lists their landing areas — mostly around New York, Miami and Los Angeles— at the top of its list of “critical infrastructure.”

Attention to underwater cables is not new.  In October 1971, the U.S. submarine Halibut entered the Sea of Okhotsk north of Japan, found a telecommunications cable used by Soviet nuclear forces, and succeeded in tapping its secrets.  The mission, code-named Ivy Bells, was so secret that a vast majority of the submarine’s sailors had no idea what they had accomplished.  The success led to a concealed world of cable-tapping.

And a decade ago, the U.S. Navy launched the submarine Jimmy Carter, which intelligence analysts say is able to tap undersea cables and eavesdrop on communications flowing through them.  Submarines are not the only vessels that are snooping on the undersea cables.  U.S. officials closely monitor the Yantar, which Russian officials insist is an oceanographic ship with no ties to espionage.  “The Yantar is equipped with a unique onboard scientific research complex which enables it to collect data on the ocean environment, both in motion and on hold.  There are no similar complexes anywhere,” said Alexei Burilichev, the head of the deepwater research department at the Russian Defense Ministry, according to sputniknews.com in May 2015. U.S. concern over cablecutting is just one aspect of Russia’s modernizing navy that has drawn new scrutiny.  Adm. Mark Ferguson, commander of U.S. naval forces in Europe, speaking in Washington this month said that the proficiency and operational tempo of the Russian submarine force was increasing.

Citing public remarks by the Russian navy chief, Adm. Viktor Chirkov, Ferguson said the intensity of Russian submarine patrols had risen by almost 50 percent over the last year.  Russia has increased its operating tempo to levels not seen in over a decade.  Russian Arctic bases and their $2.4 billion investment in the Black Sea Fleet expansion by 2020 demonstrate their commitment to develop their military infrastructure on the flanks, he said.

Russia is also building an undersea unmanned drone capable of carrying a small, tactical nuclear weapon to use against harbors or coastal areas, U.S. military and intelligence analysts said.

Sanger and Schmitt write for the NYT News Service.

“The risk here is that any country could cause damage to the system and do it in a way that is completely covert, without having a warship with a cable-cutting equipment right in the area. Cables get cut all the time — by anchors that are dragged, by natural disasters.”

Michael Sechrist, a former project manager for a Harvard-MIT research project

Friday, January 18, 2013

TECHNOLOGY - Long-Distance Laser Communication

"NASA beams Mona Lisa to moon with laser" by Miriam Kramer (Space.com), Fox News 1/18/2013

Call it the ultimate in high art: Using a well-timed laser, NASA scientists have beamed a picture of Leonardo da Vinci's masterpiece, the Mona Lisa, to a powerful spacecraft orbiting the moon, marking a first in laser communication.

The laser signal, fired from an installation in Maryland, beamed the Mona Lisa to the moon to be received 240,000 miles away by NASA's Lunar Reconnaissance Orbiter, which has been orbiting the moon since 2009. The Mona Lisa transmission, NASA scientists said, is a major advance in laser communication for interplanetary spacecraft.

"This is the first time anyone has achieved one-way laser communication at planetary distances," David Smith, a researcher working with the LRO's Lunar Orbiter Laser Altimeter — which received the Mona Lisa message — said in a statement. "In the near future, this type of simple laser communication might serve as a backup for the radio communication that satellites use. In the more distance future, it may allow communication at higher data rates than present radio links can provide."

The LRO spacecraft was the prime choice to test out the novel communication method because the spacecraft was already equipped with a laser receiver. While most spacecraft exploring the solar system today are tracked using radio signals, NASA is tracking LRO via lasers as well.

But the timing had to be just right.

NASA used its Next Generation Satellite Laser Ranging station at the Goddard Space Flight Center in Greenbelt, Md., to send the Mona Lisa signal to LRO. The team divided the famous da Vinci painting into sections measuring 150 by 200 pixels and then transmitted them via the pulsing of the laser to the orbiter at a data rate of about 300 bits per second.

Once the lunar orbiter received the image, it reconstructed the photo, corrected for distortions created as the laser signal zipped through Earth's atmosphere, and then sent the image back to Earth using its normal form of communication: radio waves.

"This pathfinding achievement sets the stage for the Lunar Laser Communications Demonstration," Richard Vondrak, another researcher with the Lunar Reconnaissance Orbiter said, "a high data rate laser-communication-demonstrations that will be a central feature of NASA's next moon mission, the Lunar Atmosphere and Dust environment Explorer."

The Lunar Atmosphere and Dust Environment Explorer is slated to launch toward the moon later this year and will focus on mapping the lunar atmosphere and environment.