11.   In Boston, the researchers found that the tracking device has cut thefts by half, from nearly twice the rate for comparable cities to slightly more than average.

12.   Intriguingly, the FBI would not say whether it ever uses such tracking devices.

13.   Jamie Foxx stars as a small-time crook who, without his knowledge, is released from jail with a tracking device planted on him.

14.   Like the uterus is a tracking device.

15.   Micron is also trying to expand globally and into new businesses, such as making chips that can be used as electronic tracking devices.

16.   Newspapers print scandalous stories, and his clothes are implanted with electronic tracking devices.

17.   No one has yet come up with a tracking device that can be attached to a scrambling hatchling that weighs a few ounces at birth.

18.   Not everyone believes that the tracking devices are a good idea.

19.   Others have been spotted, but their tracking devices were either missing or malfunctioning.

20.   Parents could use such a watch as a satellite-linked tracking device for their children or other people.