The alert warns that the stuff may be a sophisticated explosive alike one used by a young Al Qaeda-linked Nigerian last week in a failed attempt to blow up a United States airliner flying from Amsterdam to Detroit.
At the instance of a US advice, the government does not want to take a chance as there may be other colleagues of the Nigerian ready with the mysterious powder that is 'smell neutral,' and hence cannot be sniffed out by even the trained dogs.
The alert quotes the US authorities pointing out that Abdul Farouk Abdulmutallab, 23, who was wounded in a blaze from the powder he had tied to his leg, had a new kind of explosive device that obviously made it through checks at Schiphol.
It specifically asks the Central Industrial Security Force and state police chiefs to direct their security personnel at the airports to look for colourless and odourless PETN (Pentaerythritol Trinitrate) powder that can be used to make very powerful bombs on the spot.
The alert warns that the stuff will be hard to detect if carried in a sealed container, and hence better seize any powder material with the passengers and rush it to the nearest laboratory for carrying
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