Of particular concern are disruptions to global positioning systems (GPS), which have become ubiquitous in cell phones, airplanes, and automobiles, Baker said.

贝克尔说，特别关心的是全球定位系统(GPS)的破坏，它涉及手机，航空和汽车。

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The internet is an open platform, but it lacks ubiquitous wireless coverage and proper positioning technology.

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Just one year ago, the Bush administration announced it would keep the ground-based LORAN system operational to serve as a backup for the satellite-based global positioning systems, which are becoming ubiquitous in cars, planes and ships.

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