Racist Facebook allows advertisers to exclude selected ethnicities

‘A scandal is brewing over the discovery that advertisers on Facebook can “narrow” their audience by race and ethnicity, allowing them to remove their ads from the feeds of selected demographics, including African American, Asian and Hispanic.
Micro-targeting, which assigns an ethnicity to users based on their page activity, is designed by Facebook to be used to target niche audiences, but it also allows for exclusion. Facebook claims advertisers are prohibited from abusing the tool, such as using it to discriminate.
An ad purchased by ProPublica gave them the option to remove certain ethnic groups from viewing a housing ad.’
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