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HaveBlue has also been testing the "marketplace" for 3-D printing weapons. To do this he asked Thingiverse, the 3-D design sharing site run by Makerbot Industries, whether it was permissible to post weapons designs or not. According to HaveBlue, Makerbot's senior leadership decided to not disallow, but to discourage, the posting of weapons designs. Haveblue then posted a design for an AR-15 part on Thingiverse, but in the intensive legal discussion that followed Haveblue's posting, Thingiverse decided to ban weapons designs outright. However, since Haveblue's design is still on the site, it's unclear whether Thingiverse is enforcing a ban or not.

When iris-scanning biometric security systems create a digital imprint of an iris, they don’t actually store that image of the iris for future comparison to the real thing. Rather, when a person scans his or her iris into a biometric system for the first time, the system turns the iris into a code consisting of about 5,000 bits of data. This code is based on about 240 points that are measured in the actual iris image, and is for all intents and purposes a unique digital analog of the iris.

researchers at the Universidad Autonoma de Madrid and West Virginia University have found a way to reverse-engineer an iris image from the digital code itself using genetic algorithms--an iris image so good it can fool a biometric scanner.

What this essentially means is that if a database containing iris codes were hacked, the hackers could construct iris images that would dupe scanners, and they would never even have to get near the actual owner of that iris.