Randall Carlson discusses his latest scientific evidence which supports, if not proves, the Earth was struck by a series of comets just over 12,000 years ago. These impacts ended the last ice age suddenly and caused catastrophic flooding internationally (and especially in North America). His latest science, which actually starts to pinpoint the actual comet impact locations, shows how the flooding could have wiped out any previous civilization which existed here, and certainly wiped out half the megafauna of the globe almost instantaneously.