Most troubling of all, dozens of "blind pools" or "blank-check companies, " firms with no operating history that raise money to invest in anything the managers regard as suitable, have filed to go public under the JOBS Act.

WSJ: The Intelligent Investor: When Laws Twist Markets

Tests on monkeys, including ones in which the animals' eyes were held open to check that the beam does not blind, suggest it causes no permanent damage.

ECONOMIST: Electromagnetic weapons

Distance-sensing lasers will check for vehicles in the driver's blind spot and the passing lane.

CNN: Behold the?all-seeing, self-parking, safety-enforcing, networked car

Over the next couple of years, such sensors will expand their range, to check for obstacles entering a car's blind spots and issue warnings to drivers if a collision seems imminent.

ECONOMIST: MONITOR