Much of the speculation during the last five years over how al-Qaeda might construct a sequel to 9/11 has centered on unconventional weapons: Could Bin Laden’s men acquire a nuclear weapon, or even ...

CHICAGO -- The sort of liquid explosive that authorities suspect was to be used in the foiled airliner terror plot is easy for anyone with a working knowledge of ...

Travelers celebrated the suggestion that American airports might soon ease restrictions on liquids in carry-on bags that create endless hassles at security checkpoints, but more than a third of all ...

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