Ocearch expert says great white sharks thriving in U.S.
In his Emmy-nominated report, CBS News' Jeff Glor reported on the story of the first great white shark tagged in North America by Ocearch, a team of fishermen and scientists who have created new ways to study the behavior of great white sharks. Ocearch founder and expedition leader Chris Fischer joins the "CBS This Morning" co-hosts to share updates on his organization's work. http://www.cbsnews.com/news/shark-group-tags-second-great-white-shark/