CNN: The most terrifying thing lurking under the waters of the Atlantic Ocean may not come with razor sharp teeth. Scientists say Florida's coral reef system, the third-largest in the world, is in rapid decay, with a variety of threats edging the delicate ecosystem closer to collapse sooner than anyone believed possible. "We didn't think this would happen for another 50 or 60 years," said Chris Langdon, a marine biologist at the University of Miami, who published a new report on the health of the reef...