But the actual algorithms used to power much of high frequency trading are not well understood, and locked up in hedge funds and large financial firms.

FORBES: Quantopian Brings Algorithmic Trading To The Masses

The Australian research focused on the thermal effects or specific absorption rate (SAR) of radio frequency radiation - a measure of its actual effects on brain tissue, whereas the earlier study simply looked at electromagnetic radiation levels.

BBC: Hands-free mobiles given safety boost

The intended legislation requires "communications service providers" (ISPs and email providers) to install "Deep Packet Inspection" (DPI) technology hardware which would give GCHQ the ability, without a warrant, to monitor and intercept the times, dates, frequency and addresses (but not the actual content) of our online calls, emails and instant-messaging communications.

CNN: Opinion: In the digital age, everyone is becoming a spook