BALTIMORE -- Several school systems in the Baltimore area are embracing the latest in surveillance technology - adding digital video cameras that can zoom-in, detect motion and see in the dark.

Anne Arundel, Carroll, and Howard counties have plans to expand
use of the cameras. Baltimore city and county rely more on traditional camera systems, though they are experimenting with the new technology.

But some privacy advocates say the new methods of surveillance are troubling. Beth Givens of the nonprofit Privacy Rights Clearinghouse that staff, parents and students develop a privacy policy to govern how the images are used.