In the video, the major appears to be upbraiding the soldier for not using a laser warning device to signal the approaching truck.

NPR: Insider Attack Kills 2 US Troops, 2 Afghans

Ron Madrid, an expert on non-lethal warfare, says that a new laser-warning system has proved particularly effective in reducing casualties at checkpoints in Afghanistan and Iraq.

ECONOMIST: Monitor

Plugging the proposals into a spreadsheet, he started listing the tools needed to produce each one: A CNC milling machine for an updated, open-source letterpress printer, a laser cutter for a sensor warning pilots of nearby planes.

FORBES: TechShop: Welcome To Your Neighborhood Xerox Parc

Channel TV said it had hired special devices to test the laser lighting for ITV and had given a verbal warning at the beginning of every programme.

BBC: X Factor rapped by Ofcom over CD promotion