Police are convinced they have caught the major players in a plot to blow up airliners flying from Britain to the US. Twenty-four people are in custody, however tensions remain high, with some reports other suspects are still on the loose. At Heathrow Airport the security measures and strict baggage checks continue to cause delays. British Airways says 25 percent of long haul flights may be cancelled today. Hand luggage is banned – passengers are allowed a to carry a single clear plastic bag on board. It’s thought the bombers wanted to smuggle bombs disguised as drinks onto the planes.