An American Airlines flight attendant who described herself as "crazy" and a "train wreck" attacked fellow crew members and U.S. marshals during a flight from Charlotte, North Carolina, to Frankfurt, Germany, last week, according to documents filed in federal court. The complaint, filed Wednesday in U.S. District Court in Charlotte, says Joanne Snow is charged with interference with flight crews and attendants, and with assaulting, resisting or impeding an officer or employee of the United States. American Airlines spokeswoman Katie Cody said the airline is cooperating with federal law enforcement in an investigation and is working directly with employees. Fialka said he needed help from other law enforcement officers to get her to the interview room.