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Can a globe-trotting wireless speed demon be guaranteed 4G?

In this edition of Ask Maggie, CNET's Marguerite Reardon looks at whether one phone can access 4G LTE networks throughout the world.

By November 1, 2015


MasterCard to boost credit card security with smartphones

Using geolocation data, the credit card company proposes a plan that will only allow card transactions when a users' smartphone is within close proximity.

By February 25, 2014