David Trimble, Director of Natural Resources, GAO

The National Nuclear Security Administration has a guide for predicting how much its large projects will cost. But the agency’s project managers don’t know it exists, and it’s not entirely their fault. That’s according to David Trimble — he’s Director of Natural Resources and Environment Issues at the Government Accountability Office. On In Depth with Francis Rose, he suggested ways to improve NNSA’s cost estimation process.