A look back at the stories that shaped the week...It's been nearly six weeks since a wildfire in Arizona claimed the lives of 19 elite firefighters.  Sharks and their ancestors have swam in our oceans for millions of years. "Breaking Bad" is a show with the unlikeliest of topics and the strangest cast of characters ... so off the beaten path, it nearly didn't get made.  Now it's won seven Emmy's and gained countless fans.

Broadcast Saturday, August 10, 2013