The virus on the march this morning going strong in almost half of america. The risk children face as they head back to school after the long holiday break and the best way to protect them. And who is Paul Mccartney . Thats what they were asking. The twitter storm stirred up after kanye west released a new song, a collaboration with the famous beatle. Wait until you hear how his young fans are reacting. Good morning, everybody. Paula is off this morning. It is, however, great to have elizabeth vargas, anchor of 20 20 with us this morning. Its great to be here with all of you and were going to start with a story we led with yesterday. There are brandnew developments this morning in that remarkable story of a little girl who lived through a plane crash that killed her entire family. She then walked through the woods barefoot and bloody to get help from a neighbor. And were now getting a better sense of her bravery that night and were learning more about her family. How much her father lo