Pentagon's original design made it vulnerable.

• Author: Book, Elizabeth G.
• Position: Security Beat - Brief Article

"We came to the conclusion that the Pentagon was not designed from a security standpoint," said Robert Williams, security director for the Department of Defense. Initially, it was designed as an office building, and at one point, its blueprints were available on the Internet, he said. In recent years, however, such sensitive information was removed from the Web.

"People do evil things to the Pentagon on occasion. They drive by and shoot into the Pentagon, and if you're in the Pentagon, this is not fun," he said. Williams' office took action against drive-by shootings by putting thick laminated glass in the Pentagon's...