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Muchima also said several Zambian officials had been sacked following the thefts identified by the US, and that "an advanced digital stock tracking system" had been set up to monitor the supply of medicines.

On the scoreboard, a digital rendering of the pitch suddenly appeared, one based on data from the Hawk-Eye ball tracking system installed at the ballpark.

A sequel to Twister, a group of young tornado chasers test a groundbreaking new tracking system.

Farah and Diiriye say their aim is to hijack a medium-sized vessel deep in the Indian Ocean and then make it back to their mother ship, using its GPS tracking system to find bigger ships to target.

Then-Assemblymember Luz Rivas abandoned a similar bill in July, saying that state regulators were not receptive to the idea of setting up a tracking system.