First Daughter Barbara Bush had her purse and cell phone stolen as she had dinner in a restaurant in Buenos Aires, Argentina, even though she was being guarded by a detail of Secret Service agents, according to law enforcement reports made available to ABC News. It was not the only mishap on the two-week trip to Argentina by Barbara (right) and her twin sister Jenna (left). A Secret Service agent on the advance detail got into an "altercation" with someone after a night out and was badly beaten, according to the law enforcement reports. The Secret Service said today the...