Qaeda biggest threat: Interpol

Al-Qaeda and groups linked to it remain the worlds biggest security threat despite the killing of Osama bin Laden,the head of Interpol said on Tuesday. Airlines and other forms of public transport are most at risk,with terrorists using fraudulent passports to travel undetected an area of particular concern,Interpol Secretary General Ronald Noble told reporters on the sidelines of an aviation meeting in Singapore.

The airline and air industry continues to be a prime target for terrorists,but weve seen from recovered intelligence etc that they are also focusing a lot on mass transit. But airlines continue to be a special target. A major worry, he said. One out of every two international air arrivals is not being screened. Thats almost half a billion each year not being screened, Noble said.