Liesl Clark

Liesl Clark >

1
Videos
Loading...
Killer Landslides
Part of the Series: NOVA
PBS
Just before 11 a.m. on March 22, 2014, an ominous rumble startled the residents of the community of Oso, Washington, about an hour's drive from Seattle. It was the terrifying sound of what would become the United States' deadliest landslide…