July 15, 2010 -- Scientists' newest hope to steer Asian carp away from the Great Lakes is aiming powerful sound guns at them.
Members of Congress were told Wednesday during a hearing that an underwater sound gun blasted at the fish at high decibel levels might keep them out of places they're not wanted. The guns have been tested on trout from 130 feet away at a noise level of 210 decibels, which injured the fish. Read the full story to get the details.
