5/31/12: "Whale Wars" fascinates viewers with amazing footage and battles on the seas off Antarctica. But also intriguing are the passionate crewmates who chuck everything in their life to follow their passions to defend whales. Shannon Mann left her successful tech career behind. And Philly's Chad Halstead left the city for a life dedicated to animal activism. These deckhands talk about what it's like having a calling so strongly you leave the comforts of home behind, the importance of the work they do and why they think whaling is such a problem.