Why Lockheed Martin's $2 trillion F-35 program is so expensive

Lockheed Martin's F-35 is one of the most advanced aircraft ever designed. Buying and keeping them flying for decades is estimated to cost the US government $2 trillion. Leon Neal/Getty Images Lockheed Martin's F-35 program is estimated to cost more than $2 trillion over its lifetime. Most F-35 costs come from sustainment, with 75% of expenses due to maintenance and repairs. Lawmakers push for repair rights as Lockheed Martin controls key F-35 maintenance elements. Lockheed Martin's F-35 st...