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Scientists in authoritarian-ruled Singapore say they’ve developed a DNA identification assay-on-a-chip that also preps a drop of blood for sampling. This means any one of us might be just a pinprick away from being instantly Identified as a threat. (The watch, below, is one possible form-factor for the DNA tester.)

From the Institute for Bioengineering and Nanotechnology:

…a rapid test for genetic diagnosis that combines the preparation of biological samples with a polymerase chain reaction PCR on one chip. As they report in the journal Angewandte Chemie, the “laboratory device” for all steps in this system is a single drop containing magnetic nanoparticles, which is moved across the chip by a magnetic field.