www.thinkprogress.org/world/2014/07/09/3458101/f35-boondoggle-fail/
"It’s hard to argue against the need to modernize aircraft used to defend the country and counter enemies overseas, especially if you’re a politician. But the Joint Strike Fighter program has been a mess almost since its inception, with massive cost overruns leading to its current acquisition price-tag of $398.6 billion — an increase of $7.4 billion since last year. That breaks down to costing about $49 billion per year since work began in 2006 and the project is seven years behind schedule. Over its life-cycle, estimated at about 55 years, operating and maintaining the F-35 fleet will cost the U.S. a little over $1 trillion."
