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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.

The Los Angeles Police Department’s gang and narcotics unit said in a statement that it does not have a current tracking system or enforcement of nitrous oxide.