Average white person with 100 friends has 1 black friend, survey notes
                                
                                
                                    (Newser) -
                                    Three-quarters of white Americans lack any minority friends, a survey finds: Their social networks, according to the Public Religion Research Institute, are "entirely white." The average white person with 100 friends, meanwhile, would have a single black friend, a single Latino friend, one Asian friend, and one mixed-race...