So we need to spend money on weapon systems we don't need?

The engine battle pits Obama and Defense Secretary Robert Gates – who say the engine would waste almost $3 billion over the next few years – against GOP leaders like House Speaker John Boehner, R-Ohio, whose state is a chief beneficiary. The spending measure includes $450 million for the engine, which would be built by the General Electric Co. and Rolls-Royce in Ohio, Indiana and other states.

http://www.huffingtonpost.com/2011/02/16/f35-engine-battle-breaks-_n_823861.html