When John McCain was shot down over Hanoi in 1967, he was flying an A4 Skyhawk. That jet cost $860,000.

Inflation has risen by 700% since then. So Mr. McCain's A4 cost $6.1 million in 2008 dollars. Applying a generous factor of three for technological improvements, the price for a 2008 Navy F18 fighter should be about $18 million. Instead, we are paying about $90 million for each new fighter. As a result, the Navy cannot buy sufficient numbers. This is disarmament without a treaty.

The...