James Cameron slams OceanGate's carbon fiber design for Titanic sub disaster.

Director James Cameron criticized OceanGate's use of carbon fiber composite for the hull of its Titan submersible, which imploded and killed its passengers, including CEO Stockton Rush. Cameron warned against using submersibles made using composite materials, which might see "progressive damage" over time despite successful dives. OceanGate had dismissed earlier warnings about its submersibles. The company had criticized the certification process for submersibles, claiming that "bringing an outside entity up to speed on every innovation before it is put into real-world testing is anathema to rapid innovation."