Armed police called to Heathrow over British Airways flight delay

Tensions mounted as passengers trying to fly from London to Las Vegas were stranded for two daysArmed police have been called to Heathrow airport after passengers became angry that a British Airways flight was delayed for two days.People were left stranded when technical problems grounded the Boeing 747 due to fly from Heathrow to Las Vegas on Sunday. They thought they would be on their way the following day but a problem with their baggage meant the rescheduled flight was also held.Congratulati