James Cameron's Next Deepsea Mission: Get Congress to Pay Attention to the Ocean

The film director showed off his Challenger Deep submarine in Washington, D.C. Tuesday.

Filmmaker James Cameron brought the Deepsea Challenger, a vehicle used to investigate the deepest parts of the ocean, to Washington, D.C. Tuesday as he asked lawmakers to pay more attention to it and its potential for helping understand climate change. (Jason Koebler for USN&WR)

"We don't have to go into space to find great exploration horizons," Cameron said. "We can do it right here on Earth."

By + More