Experts: world watch lists are flawed terror tool

LONDON – Around the world, watch lists are a key tool against terrorism — but highly imperfect.
Experts say simple issues like fickle spelling and incomplete data, as well as deliberate deception and uncooperative countries, all make it possible for a determined terrorist like bomb suspect Umar Farouk Abdulmutallab to slip across borders.
British officials are proud of their list, which contains more than 1 million names, including that of Abdulmutallab. That didn't stop the young Nigerian boarding a flight from Amsterdam to the United States with explosives in his underwear — a stark reminder of the perils of flawed information-sharing and the limits of watch lists.
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