Censorship

'Extremely Aggressive' Internet Censorship Spreads In the World's Democracies (umich.edu) 239

Researchers from the University of Michigan used their own automated censorship tracking system to collect more than 21 billion measurements over 20 months in 221 countries. They discovered that citizens in what are considered the world's freest countries aren't safe from internet censorship. From a press release: [Roya Ensafi, U-M assistant professor of electrical engineering and computer science who led the development of the tool, and her team] found that censorship is increasing in 103 of the countries studied, including unexpected places like Norway, Japan, Italy, India, Israel and Poland. These countries, the team notes, are rated some of the world's freest by Freedom House, a nonprofit that advocates for democracy and human rights. They were among nine countries where Censored Planet found significant, previously undetected censorship events between August 2018 and April 2020. They also found previously undetected events in Cameroon, Ecuador and Sudan. While the United States saw a small uptick in blocking, mostly driven by individual companies or internet service providers filtering content, the study did not uncover widespread censorship. However, Ensafi points out that the groundwork for that has been put in place here.

"When the United States repealed net neutrality, they created an environment in which it would be easy, from a technical standpoint, for ISPs to interfere with or block internet traffic," she said. "The architecture for greater censorship is already in place and we should all be concerned about heading down a slippery slope." It's already happening abroad, the researchers found. "What we see from our study is that no country is completely free," said Ram Sundara Raman, U-M doctoral candidate in computer science and engineering and first author of the study. "We're seeing that many countries start with legislation that compels ISPs to block something that's obviously bad like child pornography or pirated content. But once that blocking infrastructure is in place, governments can block any websites they choose, and it's a very opaque process. That's why censorship measurement is crucial, particularly continuous measurements that show trends over time."
The study is titled "Censored Planet: An Internet-wide, Longitudinal Censorship Observatory."
Science

Physicists Uncover Novel Phase of Matter (phys.org) 50

schwit1 writes: A team of physicists led by Caltech's David Hsieh has discovered an unusual form of matter — not a conventional metal, insulator, or magnet, for example, but something entirely different (abstract). This phase, characterized by an unusual ordering of electrons, offers possibilities for new electronic device functionalities and could hold the solution to a long-standing mystery in condensed matter physics having to do with high-temperature superconductivity — the ability for some materials to conduct electricity without resistance, even at "high" temperatures approaching -100 degrees Celsius. "The discovery of this phase was completely unexpected and not based on any prior theoretical prediction... The whole field of electronic materials is driven by the discovery of new phases, which provide the playgrounds in which to search for new macroscopic physical properties."
Space

ESA Discovers Unexpected 'Haze' of Microwave Transmissions 69

astroengine writes "The European space observatory Planck has discovered something peculiar about our galaxy: it's humming in microwaves and, for the moment, the source of the 'hard' radiation surrounding the galaxy's core is a complete mystery. Also, the Milky Way is home to previously unknown 'islands' of cold carbon monoxide gas, helping astronomers uncover the distribution of star-forming regions."

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