Now Playing

Vaccine rates and herd immunity

01:21

UP NEXT

Art installation simulates Israeli hostage experience

00:47

Hundreds of students quarantine amid measles outbreaks

01:49

New video shows arson attack on Pa. Gov. Shapiro’s home

00:52

Trump warns Hamas to lay down arms

01:08

Air traffic controllers talk government shutdown impact

01:06

Home security video shows possible Kansas abduction

00:25

Grammy-winning R&B soul star D’Angelo dies at 51

00:16

Shapiro speaks after arson attack suspect pleads guilty

01:03

Smithsonian panda cams go dark amid government shutdown

01:26

World’s longest trail of dinosaur footprints uncovered

00:26

Instagram CEO explains new protections for teen users

00:45

Released Palestinians call loved ones

00:43

NBC News tests out United’s Starlink internet access

00:40

Instagram announces new parental controls for teen accounts

00:27

Video shows dog start a house fire by chewing battery

00:35

Gaza nurse shot in the head while on duty

01:27

Drone footage shows destruction of Gaza City

00:22

Trump says he doesn’t think he’ll get to heaven

00:25

Aid truck drives through Gaza after hostage release

00:33