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Amazon’s new Echo Dot devices. (Amazon Photo)

Amazon’s headcount to end the second quarter was 575,700, bouncing back from the first drop in employment in years last quarter. Amazon CFO Brian Olsavsky said on a call with reporters that the company has slowed its external hiring, and most of the activity in recent months has come from internal transfers as part of “re-leveling” throughout the company.

Amazon’s latest update to its Rekognition software is renewing an outcry from civil rights groups over facial recognition technology. Amazon said Tuesday that its algorithm can now detect fear from the expression on a person’s face.

Amazon’s?suit, originally reported on GeekWire this week, will be?closely?watched in the tech industry?as a new?test of the standard employment agreements?that Amazon and some other large tech companies require?employees to sign when they’re hired.

Amazon’s Prime Now facility near its Seattle headquarters, when it was under construction.