Hi, I'm Carl Azuz, news out of South America leading off today's show. Hugo Chavez, thelong time leader of Venezuelahas died. Chavez was born in Venezuelain 1954, in 1998, he was elected president, the youngest one in Venezuela'shistory. He was reelected in 2000, 2006 and 2012, Chavez was controversial, hespoke out against the United  States and other countries. Even fightingcancer in recent years, traveling to Cuba for medical treatments. Venezuela'svice president announced the death of Hugo Chavez yesterday afternoon.

Next up today, we're turning to WallStreet, a new record set yesterday by the Dow Jones industrial average. TheDow, not the entire stock market, it's a group of 30 major stocks, but it givesan idea of how the entire stock market is doing. Here is a look at the lastseveral years, in 2007, the Dow started dropping, it bottomed down in 2009,then it started going back up. Yesterday when the stock market closed, the Dowwas at a new all time high. The Dow was one factor that experts used to figureout how the entire country's economy is doing. The Dow is doing well, theeconomy is still struggling, what's the deal?

One possible explanation is that investorsdon't have a lot of opportunities to make money in other way. So the stock marketis kind of the best game in town.

At the start of this week, we reported on asinkhole that formed underneath a house in Florida. Workers have finished tearing downthat house and now we can see the actual hole. That's it, about 20 feet wide,more than 50 feet deep. This opened up underneath a bedroom and swallowed oneman up. In that's same report in Monday's show, we talked about how and why alot of sinkholes show up in Florida.This one formed on Monday just three miles away from the first sinkhole. It'snot as big, 12 feet across, four to five feet deep; it's between two houses, soit didn't casue any damage.

David Mattingly had the chance to go insidea sinkhole, this is what found.

A massive sinkhole, carved out of solidlimestone by drops of water, so this is what a sinkhole looks like from theinside.

From the inside, yes, before you fill it upwith the sand and dirt.

And if someone were living right on top ofthis, they'd be at risk.

Yes.

Geologist Jerry Black says Sunshine statehome owners might be surprise to find out just how common these are.

Rain waters going to turn into groundwaterand that's what's naturally acidic, that's the device that dissolves thelimestone. And will help create this cavities.

What is unusual about this sinkhole? It'seasy to get inside, called the "Devil's Den", it's opened to touristsfor viewing and diving. And dive instructor Prince Johnson takes me under for alook. I find that this seemingly placid pool of water is anything but.

The waters has gone down considerablybecause of the aquifer, and but it is also risen, when we've had hurricanes andtropical storms, it has risen another 45 feet.

45 feet?

45 feet, so the water is constantly goingup and down?

Depending on drought and hurricane.

Down here, it's easy to see how fluctuatinggroundwater has silently wreak havoc, I pass by limestone boulders, as big ascars, sitting on the bottom, and these same forces are still at work,compounded by the demand for fresh water. Perhaps most striking to me, how appearancesof these sinkholes are so misleading? A single beam of sunlight reveals thecavern is even bigger below the waterline, with tunnels and passageways carveddeep into the darkness. But most disturbing could be the view from up top. The roundopen is deceptively small, little indication of the cavern that's just beneathmy feet.

Until a hole like this opens up, there isreally no warning, is there?

Correct, it is that random and that sudden,and it could happen obvbiously overnight or at any time.

It can and it does, with thousands ofsinkholes opening up in Floridaevery year.

David Mattingly, CNN, Florida.