Instant Index: Scientists Thaw Gigantic Ancient Virus

Diane Sawyer reveals the stories people have been buzzing about all week.
3:00 | 03/04/14

Coming up in the next {{countdown}} {{countdownlbl}}

Coming up next:



Skip to this video now

Now Playing:


Related Extras
Related Videos
Video Transcript
Transcript for Instant Index: Scientists Thaw Gigantic Ancient Virus
Our "Instant index," tonight, begins with a statement from John travolta on that moment at the oscars. Everyone weighing in on his tongue-twisted intro of idina Menzel. Please welcome the wickedly talented, Adela dazeem. She took the stage to belt out the hit song from "Frozen." Tonight, travolta said, she would say, let it go. Let it go. ♪ Let it go let it go ♪ ♪ turn away ♪ Travolta says, idina is incredibly talented. "Frozen" won two oscars on Sunday night. Now, word of a jurassic virus in a block of ice in siberia for 30,000 years. Tonight, it has roared back to life after researchers let it thaw. It is lethal if you're an amoeba. But scientists do not believe it is a danger to humans. Though, they warn today that global warming could revive other dangerous diseases lurking out there in the siberian ice. And someone once said if the only prayer you said your entire life was thank you, that would be enough. And it starts with Joe bell. 95. A world war ii veteran who came out to cheer the runners in a charity race in San Jose. One of them noticed his uniform. Came to shake his hand. As you're seeing, another and another and another, until he's engulfed in a wave of gratitude by the children and grandchildren and great grandchildren, who get to live the freedom he helped secure.

This transcript has been automatically generated and may not be 100% accurate.

{"id":22776784,"title":"Instant Index: Scientists Thaw Gigantic Ancient Virus","duration":"3:00","description":"Diane Sawyer reveals the stories people have been buzzing about all week.","url":"/WNT/video/instant-index-scientists-thaw-gigantic-ancient-virus-22776784","section":"WNT","mediaType":"default"}