By Zahra Khaliq A British Airways flight bound for Heathrow Airport was forced to abort take-off after a terrifying bomb threat. The plane, which was due to take off from Bermuda Airport, was not given clearance to depart after the Captain of the Boeing 770-200ER squawked 7700, indicating an emergency. Police and counter-terrorism officers rushed to the runway where flight BA158 was left abandoned. Authorities were on scene just minutes after Bermuda Airport bosses received an email warning that a bomb was on board the plane. All roads within six miles of the airport were closed as a result. T…