Laser bomb detection
The best place to be when searching for concealed bombs is as far away as possible.
View ArticleAirport security scandal
America has spent billions on airport security, and millions of fliers suffer delays and humiliation at checkpoints – yet its skies remain less than fully safe. Some experts believe here’s a better way
View ArticleFacial recognition software still not as good as researchers
Despite video footage of the Boston Marathon bombing suspects, the FBI still had to resort to the old-fashioned “do you know this person?” technique to identify the men
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