I don't see any reason why Yahoo could not establish trust...

I don't see any reason why Yahoo could not establish trust and reliability as a common carrier -- that adjustable filter that Yahoo News is now -- and, at the same time, become a credible producer of its own editorial content, ... There are problems to solve in the dual track approach, because its requires two different kinds of user trust. The day when Yahoo starts hesitating to point out to the rest of the Web (because it covets the traffic for locally produced goods) is the day decline sets in. My guess is they know that.