News articles are for clicks. If they could find an example of selling at a loss, they would have used that because it would get more clicks. The fact that they couldn't find one tells me that the allegations are likely to be false. The fact that googling "Amazon selling books at a loss" didn't turn up massive amounts of articles from anti-tech media companies also tells me that. The fact that selling books at a loss to drive out competition (which is, in fact, illegal) is not even mentioned in the anti-trust complaint against Amazon tells me that the allegations are false.