Instant Index: Smart Chip Senses Oncoming Heart Attack

David Muir reveals the top stories that have people buzzing this week.
1:07 | 03/24/13

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Transcript for Instant Index: Smart Chip Senses Oncoming Heart Attack
We turn, now, to our "instant" index on a sunday night. And a tiny chip that can could one day save lives. Scientists say it could be a powerful weapon against heart attacks. The device implanted just the skin, detecting sudden changes in your blood. The chip then sends a warning to your smartphone. It can also send it right to your doctor's computer. The swiss researchers say they're conducting experimental trials right now. Now, to the oscar-winning actress thinking inside the box, with thousands watching. We get a picture automatic. You don't want the money? You keep the money. You're going to need it. You might remember tilda swinton from her role in "michael clayton" opposite george clooney. Tonight, her new starring role in a glass box at new york's museum of modern art. She is sleeping in that box as long as the museum is open. She's been on display in other museums before. But never here in the u.S. And finally in "the index" tonight.Big on broadway. "The book of mormon" setting a record overseas. The highest one-day box office earnings in london theater history. And selling more than $3 million in tickets.

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