There is a new threat to our nautical heritage and our nation’s defense! In 2007, the composite tea clipper Cutty Sark, built in 1869, was ravaged by fire. An investigation revealed the culprit - an industrial vacuum cleaner. Now, it appears that a vacuum cleaner has struck again! Investigators say that a vacuum cleaner caused the recent fire on the nuclear submarine USS Miami in a shipyard in Maine, causing an estimated $400 million of damage.