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Apple and Amazon.com are on a collision course in all sorts of businesses — from digital music to e-readers. Now, the two tech titans are trying to make sure that your phone avoids collisions, eliminating cracked smartphone screens for good.

Appointed by the Department of Justice in May 2017 to take over the Russia probe, Mueller concluded the investigation in March by submitting a 448-page, confidential report to Attorney General William Barr, who was sworn in about a month earlier.

Are these simply marketing moves to reach more potential customers? Or, are they attempts to shore up gaps that online offerings can’t fill? Do online-first models have advantages over traditional retailers? The answers are yes, yes, and yes — but the details might surprise you.

Archaeological excavation listed among China's top finds in 2017

Apple said the facial recognition feature called Face ID can unlock phones and can be used for payments. But it faces questions about how the company can protect such data.