This is not really about an investigation into the White House, in my opinion. If you read the story in Time, it looks like she is trying to say she was threatened with being demoted by her boss after putting handwritten notes about her reservations on contracts. This is more about her attempt to show that she is being retaliated against. It has nothing to do with wrong doing by the White House.
The headline says "the Bush administration," not the Pentagon, is being investigated, and that's how it will be played.