A deafening blast across thousands of ocean miles. That’s what endangered whales and other animals will hear if the U.S. approves seismic oil-gas exploration in the Mid Atlantic and South Outer Continental Shelf. These biosonar creatures communicate via sound and its echo. Explosive airgun noise erases their calls, leaving them unable to hear, feed or mate. Some fatally hemorrhage. Deaf, stranded, dead. To possibly save 3 cents on gas?