The opinion archive provides access to past opinion stories from Communications of the ACM and other sources by date.
Everyone's talking about the Internet of Things, a proposed network of intelligent devices that could one day automate much of the world around us. HVAC and lighting systems would adjust depending on a user’s whereabouts. Lawns…
Gummi Bears. That's what playing with Lego bricks reminds me of—sitting cross-legged on the floor in the back room of my parents' house on Saturday mornings, a giant tub of Lego pieces open in front of me while animated bears…
Winnie Callahan, director for business, education, government, and health innovations at the University of Southern California Viterbi's Information Sciences Institute, discusses the school's new master's degree in cybersecurity…
Once upon a time seeing your life flash before your eyes was something people did their best to avoid. The arrival of Google Glass seems to have changed that.
Phil Zimmermann might be a technologist, but he tends to get philosophical when it comes to the issues of privacy and security and how they intersect with our society.
My "aha" moment arrived two decades ago while I was an undergrad student (and dilettante "futurist," though I didn’t know the word then), sitting in the Great Hall at St. John's University in Collegeville, Minnesota.
Ladar Levison can't talk for legal reasons about the specifics of why he shut down Lavabit, his encrypted Web e-mail company, but he is hardly tight-lipped about the subject.
Sometime in the not-to-distant future, a submarine will sink. An air defense missile will detonate far from its intended target. These chilling scenarios will directly result from a $2 counterfeit electronic tucked deep within…
Smartphone pioneer Jeff Hawkins says that he primarily concentrates today on building machines that operate on neuroscientific principles.
Professor emeritus Rodney Brooks gained fame in the 1990s for co-founding iRobot, an MIT spinoff that brought the world the Roomba and other innovative, helpful robots. He's since moved on to robots that are bigger, but no less…
When he met Julian Assange for the first time, Sigurdur Thordarson admired the WikiLeaks founder's attitude and quickly signed up to the cause.
Free software licenses can be divided into two broad categories: copyleft licenses and permissive licenses. The licenses reflect a particular view about fairness: a sense that it is wrongful for others to take from the commons…
The technological values promoted by Apple are part of the Faustian bargain of technology, which both giveth and taketh away.
Where are we in the hype cycle of synthetic biology?
As an undergraduate at Oxford University in the mid-1970s, K. Birgitta Whaley struggled to choose between chemistry and physics.
Most of what scientists know of Jupiter's moon Europa they have gleaned from a dozen or so close flybys from NASA's Voyager 2 spacecraft in 1979 and NASA's Galileo spacecraft in the mid-to-late 1990s.
I always travel with a pair of binoculars and, to the puzzlement of my fellow airline passengers, spend part of every flight gazing through them at whatever happens to be below us: Midwestern towns, Pennsylvania strip mines,…
Does the NSA really operate a vast database that allows its analysts to sift through millions of records showing nearly everything a user does on the Internet, as was recently reported?
"Any analyst at any time can target anyone. Any selector, anywhere ... I, sitting at my desk, certainly had the authorities to wiretap anyone, from you or your accountant, to a federal judge, to even the President. …" Thus spoke…
The future of on-campus learning lies in the right combination of digital and traditional tools.
One year ago Monday (Aug. 5), NASA's Mars rover Curiosity pulled off a stunning and unprecedented landing inside Gale Crater, kicking off a two-year surface mission to determine if the Red Planet could ever have supported microbial…
Richard Stallman, revered by some as a genius (after all, he won a McArthur "genius" grant in 1990) and by others as a crackpot, was in New York Monday where he warned against the dangers of using proprietary software, SaaS,…
The co-editor of Boing Boing, novelist and fellow at the Electronic Frontier Foundation shares his tools for circumventing censorship in airports, easing back pain and sparking the curiosity of his 5-year-old daughter
Ten years ago this week, Senator James M. Inhofe, the Republican from Oklahoma, used a two-hour floor speech to launch his campaign on the credibility of climate science pointing to dangers from the unabated release of greenhouse…
Imagine the government passed a law requiring all citizens to carry a tracking device. Such a law would immediately be found unconstitutional. Yet we all carry mobile phones.
Online courses have the potential to dramatically transform Indian higher education by alleviating faculty shortages and delivering education on a scale and at a quality not possible before.
"People love Facebook. They really love it," Biz Stone wrote earlier this month. "My mother-in-law looks hypnotized when she decides to put in some Facebook time."
What is Brian Krebs?
In mid-May, Edward Snowden, an American in his late twenties, walked through the onyx entrance of the Mira Hotel on Nathan Road in Hong Kong and checked in.
Considering new business models for massive open online courses.