But time and time again, the so-called "air gaps" between classified and public networks have been bridged, largely through the use of discs and removable drives.

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The use of a polymer filling for the gaps instead of air lets the Singapore agency create a 3D, cavity-backed silicon antenna that measures just 0.06 by 0.04 inches, roughly the size of a seed on your hamburger bun, even as it increases the breakneck pace.

ENGADGET: Seed-sized A*STAR antenna could open the door to 20Gbps wireless

The thwarted attack, in which suspect Umar Farouk AbdulMutallab allegedly tried to ignite a bomb hidden in his underwear, has rattled air carriers and passengers, largely because it exposed gaps in a vast and expensive security net designed to keep terrorists off planes.

CNN: STORY HIGHLIGHTS

Moreover, the rats that successfully completed the more difficult task, which involved a longer gap in time between the sound and the puff of air, had retained more new neurons than those assigned easier tasks, with shorter gaps.

ECONOMIST: Neuroscience (2)

The committee highlighted significant gaps in the capabilities of the ANSF in areas such as helicopters and close air support and medical care.

BBC: Afghanistan peace deal with Taliban needed, say MPs

Air-traffic controllers say furloughs will strain an already understaffed workforce, which also will have to fill gaps left by tower closures at small airports.

WSJ: Airlines Dispute Planned Air-Controller Cuts

Likewise Wizz Air, a Hungarian low-cost carrier, also said it would expand its Budapest schedules to fill the gaps left by Malev.

ECONOMIST: Business travel