Queen Elizabeth's life threatened before 1983 San Francisco stop

The FBI has disclosed a potential threat to Queen Elizabeth II during her 1983 trip to the United States. The documents were released this week on the FBI's records website. Elizabeth died last September after a 70-year reign. The queen's West Coast visit with her husband, Prince Philip, included a stop in San Francisco in March 1983. CBS San Francisco reported that one document appears to detail a tip gathered around a month before that visit from San Francisco police …