>>Reporter: A SPRING VACATION FOR THE FAMILY IN THE U.S. VIRGIN ISLANDS WAS SUPPOSED TO BE A TROPICAL PARADISE. BUT JUST HOURS AFTER CHECKING INTO THEIR ST. JOHN’S CONDO, THE FAMILY OF FOUR THOUGHT THEY HAD FOOD POISONING. PARAMEDICS WERE CALLED TO THE DELAWARE FAMILY’S VILLA ON MARCH 20th, AFTER STEVE FELL UNCONSCIOUS. HIS WIFE AND TWO SONS BEGAN HAVING SEIZURES. THE FAMILY WAS RUSHED TO A HOSPITAL IN NEARBY ST. THOMAS, AND THEN AIR LIFTED TO THE UNITED STATES AFTER IT APPEARED THEY HAD BEEN EXPOSED TO A LETHAL PESTICIDE. >>IT’S A POTENT NEUROTOXIN. EPA BANNED ITS USE FOR INDOOR APPLICATIONS ALL THE WAY BACK IN 1984.>>Reporter: IGNORING EPA REGULATIONS, FEDERAL INVESTIGATORS SAY METH ILL BROMIDE WAS SPRAYED ON THE FIRST FLOOR OF THE CONDO TO KILL BUGS. BUT THE FUMES REACHED THE SECOND FLOOR WHERE THE FAMILY WAS STAYING. >>THIS IS A VERY STOPICS PESTICIDE. >>Reporter: STEVE IS NOW OUT OF HIS COMA AND IMPROVING. HIS TWO SONS ARE STILL BOTH LISTED IN CRITICAL CONDITION. HIS WIFE IS OUT OF THE HOSPITAL AND UNDERGOING THERAPY. INDOOR USE OF THE TOXIN IS ILLEGAL. BUT THE EPA SAYS IT HAS NEVER SEEN SUCH A DEVASTATING INDOOR CASE BEFORE. RAISING SERIOUS QUESTIONS ABOUT WHERE ELSE THIS CHEMICAL IS USED.>>TODAY IT’S USED PRIMARILY IN AGRICULTURE. FOR INSTANCE, IT’S INJECTED INTO THE SOIL OF STRAWBERRY FIELDS.>>IF THE CHEMICAL IS PUT IN THE GROUND NEAR THE STRAW BERSTRAWB HOW DO WE NOT GET IT IN OUR SYSTEM WHEN WE EAT THE STRAWBERRIES?>>WELL, WE TRUST THAT THE STRAWBERRY PRODUCERS ARE MAKING SURE THAT THERE’S NOT EXCESS PESTICIDE RESIDUE ON STRAWBERRIES. YOU DIDN’T WANT TO WASH THEM REALLY GOOD. >>Reporter: ACCORDING TO THE JOURNAL OF INDUSTRIAL MEDICINE, FIELD WORKERS WERE POISONED AT A CONNECTICUT NURSERY IN 1990, AFTER THE CHEMICAL WAS INJECTED INTO THE SOIL. IN 2011, THE CDC REPORTS WAREHOUSE WORKERS IN CALIFORNIA WERE TAKEN ILL AFTER EXPOSURE