A woman who was filmed pepper spraying four Asian women in a racially motivated attack in Manhattan last week has been tracked down and arrested by police, after video of the incident went viral. The suspect, 47-year-old Madeline Barker, was caught on camera hurling racial insults at the victims, such as 'Go back to where you came from' and you don't belong here,' during the June 10 altercation. The incident, which transpired in a public plaza in the Meatpacking District, subsequently sparked a search for the then-unidentified woman - dubbed 'Karen' by internet users. *** Barker, who hails from Florida,...