Former US president John F. Kennedy had an affair with a Swedish flight attendant, according to a new book based on interviews with current and former Secret Service agents. According to ex-agent Robert Lutz, President Kennedy took a liking to a Swedish Pan Am Flight attendant who was riding on the press pool airplane which typically follows US presidents while they travel. While Lutz, who was assigned to the press plane, had initially planned to ask the good looking Swede out for dinner, members of the Secret Service detail assigned to President Kennedy told Lutz to back off. “She’s part...