Overview:Sharks are BIG business in adrenaline eco-tourism. And some thrill seekers deliberately pursue close encounters with deadly sharks – without the protection of a cage. The bigger and more dangerous the shark, the better. At Mexico’s Guadalupe Island, guests (including 5 & 7 year old siblings) come face to face with great whites. In the Bahamas, scuba divers pay big bucks to get up close and personal with tiger sharks. But have we taken this risky sport too far? Shark advocates Dr. Erich Ritter and Chuck Anderson have grave reservations about how far we are willing to go for a thrill. And they have intimate knowledge of the subject. Both men were brutally attacked by bull sharks. Shark Divers also examines the controversy surrounding a handful of high-profile attacks in 2008, including the first shark tourist killed while on a shark excursion.