With the technology to conduct more nuanced tests, some companies say they can provide more useful detail about how people think in dynamic situations. Marcus Butt/Getty Images/Ikon Images hide caption

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President Obama, joined by Homeland Security Secretary Jeh Johnson (left), delivers remarks at the National Cybersecurity and Communications Integration Center on Jan. 13 in Arlington, Va. Obama discussed efforts to improve the government's ability to collaborate with industry to combat cyber threats. Kristoffer Tripplaar-Pool/Getty Images hide caption

itoggle caption Kristoffer Tripplaar-Pool/Getty Images

Some colleges and police departments are starting to use software that scans social media to identify local threats, but most tips still come from members of the public. Ikon Images/Getty Images hide caption

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We finally found this simple, traditional radio at Radioshack — though they are also available, in abundance, online. Emily Jan/NPR hide caption

itoggle caption Emily Jan/NPR