The FBI warned airlines that it uncovered intelligence that al-Qaeda was planning to hijack an aircraft in Britain, most likely at Heathrow or Gatwick airports, and fly it into a building sometime in the next two months. The warning, circulated July 30, said that terrorists may try to hijack planes using weapons disguised as common items travelers carry, such as cameras or flash attachments. Airlines are on alert. In a related item, British Airways flights to Saudi Arabia remain suspended because of threats against British interests there. Airline officials expect to have updated information by the end of August to make a decision about when it may be possible to resume flights.