Friendship’s Dark Side: ‘We Need a Common Enemy’ Friendship generally is regarded as an unalloyed good. But scientists have found it also can be a conspiracy, a way to separate “us” from “them.” Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:Perseid meteor shower pictures: NASA captures stunning Perseids 2018 photo ahead of peakTarantula venom could CURE epilepsy: Pioneering medication developed for seizuresEclipse 2018: How to watch the partial solar eclipse THIS WEEKENDE.P.A. Staff Objected to Agency’s New Rules on Asbestos Use, Internal Emails ShowEclipse 2018: The third and FINAL solar eclipse of 2018 will be THIS SATURDAYMeet Iceland’s Whaling Magnate. He Makes No Apologies.