Pipe Crawling Underwater X-Ray Machines Find Leaks Before They Happen

They say an ounce of prevention is worth a pound of cure, but when it comes to an underwater pipeline carrying oil or natural gas, staying ahead of leaks can actually help prevent a billion dollar cleanup. So researchers at GE are developing an underwater submersible that uses X-rays to check pipelines for signs of corrosion and deterioration before something catastrophic happens.