WikiLeaks: essential Sites Vulnerable to Terrorism

Courtesy of WikiLeaks comes a secret State Department cable listing sites around the world imperative to U.S. national security and public health.

"Leaking a list that purports to lay out serious infrastructure is like painting a target on the companies or the entities which are listed," said former Secretary of Homeland Security Michael Chertoff, who was once in charge for what's called the national infrastructure protection plan.

"Some of the infrastructure is very well protected, and there's an almost certainly not very much a terrorist could do, but there may be some basics that are not well-protected or not well-known," Chertoff said.

Attacks harmful to the U.S. could occur on any continent and in unlikely places that might never have occurred to bin Laden or any other terrorist.