Clark County is using GPS devices to track many of its vehicles.

Managers can check their computers and find the locations of building inspectors, animal control officers and maintenance workers.

KATU reports (http://is.gd/isxBH2) it's raising "Big Brother" concerns, but Risk Manager Mark Wilsdon says they're public employees, and if they aren't doing anything wrong there's nothing to worry about.

He says since GPS units were installed the number of completed jobs went up and so have fuel savings.

The technology also will go on snow plows and street sweepers to help show which streets have been cleared and cleaned.