Congress Questions Lockheed

They're always questioning something these days, but who questions Congress? From Reuters:

Lockheed Martin Corp.'s F-22 and F-35 fighter jet programs -- valued at $320 billion together -- faced tough scrutiny by congressional investigators and Republican Sen. John McCain on Tuesday.
McCain held a hearing of a subcommittee of the Senate Armed Services Committee, where witnesses questioned the Pentagon's plan to change the way it buys the last 60 radar-evading F-22 "Raptors," and whether the F-35 Joint Strike Fighter is being rushed into testing before adequate flight testing is done.
McCain also raised concerns about the Bush administration's decision to cancel a second engine for the F-35 next to the one being built by United Technologies Corp. UTX.N unit Pratt & Whitney, saying competition historically helped lower costs.

Though I happen to agree that our major defense industries are corrupt and inefficient, I wonder if Congress and McCain are apart of the problem rather than the solution.