Trillions of cicadas emerge across U.S.
Trillions of cicadas are emerging in some parts of the country after laying dormant for more than a decade. In Illinois, two broods will co-emerge for the first time in over 200 years. The collective noise from the insects can be as loud as a jet engine. Jonathan L. Larson, extension entomologist for the University of Kentucky, joined CBS News to discuss the emergence.