Here we go again. An Ohio woman has gone missing from a Carnival ship on a four-day cruise to Key West and Mexico. She is presumed to have fallen overboard. During the last six years, 62 passengers have gone overboard and died on cruises, according to a tally by the Safecruise blog.

A few weeks ago I suggested that the worst case of customer service was to be killed in a plane crash. I stand corrected. It is equally bad to fall off a ship and drown -- and perhaps as negligent of a cruise line to allow something like that to happen.

Details on the "disappearance" remain sketchy. We know that it is an unidentified 36-year-old woman who was last seen on Sunday. The FBI doesn't suspect foul play, at least for now.

I've blogged about the "man overboard" problem and you would think after the latest incident, the death of 22-year-old Elizabeth Galeana, something would be done, at least publicly, to ease concerns. Instead, the cruise industry seems to think that there is no problem.

If the cruise lines remain in denial, I think the government will have no choice but to step in and regulate security on cruise ships in a meaningful way.