The Army is investigating sea barriers to protect New York from a future Sandy. But others have doubts. Plus, the discovery that a methane-burping microbe was not a bacterium added a new branch to the tree of life: The Archaea.
We'll check in with biologists studying American kestrels, prairie falcons, red-tailed hawks, and other raptors that nest in Idaho's Snake River Birds of Prey National Conservation Area. Plus, bringing back the California condor.