"How Facebook’s news feed can be Fooled into spreading misinformation" PBS NewsHour 4/25/2018

Excerpt

SUMMARY:  Facebook’s news feed algorithm learns in great detail what we like, and then strives to give us more of the same -- and it's that technology that can be taken advantage of to spread junk news like a virus.  Science correspondent Miles O'Brien begins a four-part series on Facebook’s battle against misinformation that began after the 2016 Presidential election.