Flight trials for greener aviation set for take off

Commercial flight trials that use satellite-enabled communications to reduce the environmental impact of flying are scheduled to commence once normal traffic levels resume.

A 'veil of darkness' reduces racial bias in traffic stops

The largest-ever study of alleged racial profiling during traffic stops has found that blacks, who are pulled over more frequently than whites by day, are much less likely to be stopped after sunset, when "a veil of darkness" ...

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