Steve Quinn aimed a XRF scanner gun at a wrestling action figure to measure lead and other substances in the small toy. When he squeezed the trigger and the gun completed its calculations, a screen ...

WASHINGTON — It’s the size of a breadbox, uses about 10 watts of power, and with a click of a button, can provide the user a glimpse of what organic threats like drugs and explosive chemicals lies ...

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You have to feel sorry for the police officers who are required to frisk people for guns or knives - after all, if someone who doesn't want to be arrested is carrying a lethal weapon, the last thing ...

After some earlier pilots, so-called gun scanners are making their debut on the subway, with Mayor Adams and MTA officials announcing yesterday that the imposing machines would be coming to select ...