For example, researchers in Arizona are using real-time kinematic global positioning systems, an ultra-precise version of GPS that can measure positions with sub-inch accuracy levels, to control weeds in cotton fields with steel cultivators.

FORBES: American Agriculture's 'Sputnik Moment'

Ultimately, the Compass Navigation System could be used worldwide to provide precise positioning data for the Chinese military similar to information already produced by the U.S. GPS for military field commanders.

CENTERFORSECURITYPOLICY: 2007: A Chinese space odyssey