Facebook flags Trump ads with symbols once used by Nazis

WASHINGTON (AP) — Facebook has removed a campaign ad by President Donald Trump and Vice President Mike Pence that featured an upside-down red triangle.That symbol was once used by Nazis to designate political prisoners, communists and others in concentration camps.Nathaniel Gleicher, the company’s head of security policy, confirmed at a House Intelligence Committee hearing Thursday that the ad had been removed. He says Facebook does not permit symbols of hateful ideology “unles