The equipment transferred to law enforcement agencies included various communications security and cryptologic devices, radio navigation equipment and electronic countermeasures equipment.

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Well, that's the choice of the Americans, but this Government and many other governments have decided that for national security reasons they don't want to disclose the level of medical countermeasures.

BBC: News | NEWSNIGHT | Smallpox interview transcript

Despite these burgeoning countermeasures there is, of course, no such thing as perfect security.

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For national security reasons we haven't given out details of any of our medical countermeasures, and that's the same for many other countries.

BBC: News | NEWSNIGHT | Smallpox interview transcript

The lack of hijackings were in part a product of an environment in which airport security was quite strict, and says little about what would happen if these countermeasures were removed.

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If you want to do something that makes security sense, figure out what's common among a bunch of rare events, and concentrate your countermeasures there.

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