Li-Fi is a new method of delivering data. It uses the visible spectrum rather than radio waves. For the first time, this new technology has been tested in a working office. Li-Fi is a wireless technology that transmits high-speed data using visible light communication. The Li-Fi system uses standard light-emitting diodes (LEDs) to transmit electronic data signals, which will enable users to access the internet through the ordinary lighting systems in schools, workplaces and homes.

With scientists achieving speeds of 224 gigabits per second in the lab using Li-Fi earlier this year, the potential for this technology is huge. And now, scientists have taken Li-Fi out of the lab for the first time, trialling it in offices and industrial environments in Tallinn, Estonia, reporting that they can achieve data transmission at 1 GB per second - that's 100 times faster than current average Wi-Fi speeds.

The technology uses Visible Light Communication (VLC), a medium that uses visible light between 400 and 800 terahertz (THz). It works basically like an incredibly advanced form of Morse code - just like switching a torch on and off according to a certain pattern can relay a secret message, flicking an LED on and off at extreme speeds can be used to write and transmit things in binary code. The flickering of light is too fast for humans to notice.

http://www.bbc.com/news/technology-34942685

"After the recent Paris terror attacks, the French government is proposing to forbid and block the use of the Tor anonymity network, according to an internal document from the Ministry of Interior seen by French newspaper Le Monde.

That document lays out two proposed pieces of legislation, one around the state of emergency, and the other concerning counter-terrorism.
In the former, the French government is considering to "Forbid free and shared wi-fi connections" during a state of emergency. This comes from a police opinion included in the document: the reason being that it is apparently difficult to track individuals who use public wi-fi networks.

The latter piece of legislation, meanwhile, says the government is considering "to block or forbid communications of the Tor network." The legislation, according to Le Monde, could be presented as early as January 2016."

- http://motherboard.vice.com/read/after-paris-attacks-proposed-french-law-would-block-tor-and-forbid-free-wi-fi