Bayesian inference has great promise for the privacy-preserving analysis of sensitive data, as posterior sampling automatically preserves differential privacy, an algorithmic notion of data privacy, under certain conditions (Dimitrakakis et al., 2014; Wang et al., 2015b). While this one posterior sample (OPS) approach elegantly provides privacy "for free," it is data inefficient in the sense of asymptotic relative efficiency (ARE). We show that a simple alternative based on the Laplace mechanism, the workhorse of differential privacy, is as asymptotically efficient as non-private posterior inference, under general assumptions. This technique also has practical advantages including efficient use of the privacy budget for MCMC. We demonstrate the practicality of our approach on a time-series analysis of sensitive military records from the Afghanistan and Iraq wars disclosed by the Wikileaks organization.

A private company is aiming to break into the developing asteroid mining business with a concept that could turn the minor planetary objects into rudimentary spacefaring vessels. The Mountain View, Calif.-based Made In Space, Inc., responsible for the first 3D printer to function in zero gravity conditions, will use its additive manufacturing expertise and backing from NASA to continue work on its Project Reconstituting Asteroids into Mechanical Automata (RAMA). That initiative "turns asteroids into basic spacecraft capable of moving themselves to useful locations in space," according to a blog post by Made In Space co-founder and chief technology officer Jason Dunn. NASA itself is already invested in the further study of the near-Earth objects (NEOs), and even aims to move a portion of an asteroid into Earth's orbit in the near future. And with the once-theoretical asteroid mining business now on its way to becoming an international industry, utilizing the cosmic bodies for the transport and harvesting of resources is now a practical interest.

The U.S. Food and Drug Administration (FDA) has just approved the first medical robot from Auris Surgical, a stealthy startup led by the co-founder of industry leader Intuitive Surgical, makers of the widely-used da Vinci robot. The teleoperated ARES robot (the acronym stands for Auris Robotic Endoscopy System), was cleared by the FDA at the end of May, and could now be used for diagnosing and treating patients. Auris, which describes itself only as a "technology company based in Silicon Valley," was previously thought to be working on a robotic microsurgical system designed to remove cataracts, and the company has in fact filed several patent applications along those lines. However, an investigation by IEEE Spectrum suggests that the company has greater ambitions, including, according to current and former employees, "building the next generation of surgical robots… capable of expanding the applicability of robotics to a broad spectrum of medical procedures." A close reading of recent patent applications filed by Auris scientists shows that the company is focusing on so-called endolumenal (or endoluminal) surgery.

Given the fact that a universal income – at anything but the stingiest level – would involve redistributing untold billions in taxation from rich to poor, this seems less like "socialism with an iPad", in McDonnell's phrase, and more like socialism plain and simple. Which is perhaps why Swiss voters gave the idea a gigantic raspberry in a referendum at the weekend. Experts are increasingly convinced that computers will soon be able to do many human jobs in less time and for less money – in other words, that the pace of technological change will outpace the labour market's ability to cope. The same factories in China that undercut the West with their low labour costs are already replacing those same workers with even cheaper robots; soon, middle-class professionals in Brighton or Boston could find that they are just as vulnerable to being given the P45 by their PC.

There is a new technology being tested for use on UK civilians en masse on our streets, millimetre microwave scanners. These electromagnetic radiation scanners, which use Ultra Wide Band (UWB) at 75-110 GHz, are able to be beamed at crowds to detect potential concealed weapons being carried by individuals. Using the same technology as the American airport TSA scanners, over which there has been much controversy in the level of detail these scanners reveal about an individual, MiRTLE, provided by Radio Physics Solutions (RPS) purports to use artificial intelligence (AI) to identify weapon shaped objects without the system revealing the human body image. Practically this would make sense, as a human operator seeing a crowd of people imaged by millimetre microwaves would not be able to effectively scan the crowd for weapon shaped objects or suicide vests. This technology is funded by us, to be used on us.

Don't be surprised if you see a very large, very unusual drone flying through Nevada's skies. The state's Institute for Autonomous Systems has given China's EHang permission to test fly its passenger-toting 184 drone later this year. In addition to providing basic clearance, the move will also have the Institute create criteria that shows the airworthiness of the autonomous single-seater to the Federal Aviation Administration. It's not certain just where the 184 will fly, although it'll sometimes need restricted airspace. EHang won't just be flying in the empty desert, then.

One of the lesser-known projects being pursued by the National Aeronautics and Space Administration is the development of software that learns automatically to find patterns in scientific data. Now, the project could get its computer hardware from an oddly familiar source: the agency's former chief, Dan Goldin, who founded a startup making chips to do those kinds of tasks. The company, KnuEdge, has modeled its computer chip on the human brain in an attempt to better handle programs that fall under the umbrella of machine learning. The new chip could be plugged into data centers to teach itself such jobs as sorting images, understanding language, and following trends in streams of data. Goldin founded the company in 2005, keeping its operations secret until he revealed the new chip on Monday morning, along with voice recognition software that excels in noisy environments.

It took the technology world by storm when it was announced at CES in Las Vegas. Now a Chinese firm that has build a self flying'passenger drone' says it could soon begin testing in Nevada. The Nevada Institute for Autonomous Systems, a state nonprofit group sponsored by the Governor's Office of Economic Development, will work to help EHang test and develop its system, officials said Monday. EHang and Lung Biotechnology hope to use 1,000 drones to deliver artificial human organs to hospitals around the US. The all-electric vehicle has four arms with a total of eight propellers at the end.

With companies like Amazon and Google pushing for commercial use of drones, the U.S. government is under tremendous pressure to develop a control system that keeps order when hordes of drones flock to the skies. Professional drone-maker PrecisionHawk is one of the companies working on this problem. At the drone Data X Conference in San Francisco last week, the company showed off LATAS (Low Altitude Traffic and Airspace Safety), a system which uses cell networks and satellites to map the flying area around a drone and ensure that is has a clear airspace. Such systems are vital if commercial drone services such as package delivery, photography and surveying are to get off the ground. Current regulations restrict drone use to line-of-sight and impose restrictions on flight that could be eased if safety is assured. "We are taking lots of satellite data that we collect via satellites and we are processing that data into a very high resolution, 3D map of the Earth.

The Iranian regime has banned the sale of a video-game that gives players a first-person perspective of the 1979 Iranian revolution. "1979 Revolution: Black Friday", which was created by an Iranian-born game designer and his wife and released back in April to acclaim for its historically accurate depiction of the Iranian revolution, has been banned by officials in Tehran for being "Anti-Iranian" and "pro-American propaganda." Navid Khonsari -- a former Rockstar Games designer who helped develop the popular "Grand Theft Auto" series says they will look for another way to get the games to the masses. Officials in Tehran claim that the game is "anti-Iranian" and "pro-American propaganda." We are trying to combat the censorship," Khonsari tells FoxNews.com. We tried to portray a truthful account of what happened."