Some people worry about how safe it is to have their data travel through the ether in wireless systems.

If one connection should fail, data can travel across an alternate route.

Modern network technologies are often full-duplex, meaning that data can travel in both directions at the same time.

In some cases, the data might travel quite a distance before getting to the right place.

More detailed, flight-by-flight data are available from airlines and travel agents who subscribe to a computer service.

Simply put, spectrum is the intangible road that allows data to travel seamlessly through the air.

Because the data travels via radio frequency, the participant merely needs to be within range of the base station (300 - 500 feet).

But one drawback of satellite-based Internet access is that the data do not travel at the same speed in both directions.

A second sticking point with satellite access is that the distance the data must travel - at least 100,000 miles round trip - can cause delays.

Commissioner, could you please take action to ensure that the data can travel with the prisoners when we get to that stage?