Yahoo Hijacked by Baidu?

With Baidu controlling the market-share in China for Search, it's quite surprising that they seem to be hijacking searches on Yahoo. In our office there's about 30 machines, and on the majority this seems to work. If you do a search on Yahoo.com(any search) you get redirected to Baidu (as shown below) and shown chinese results. You can also see when on http://search.yahoo.com everything is fine, but when you add http://search.yahoo.com/search to the end of the URL it redirects to Baidu. Here is the header info we picked up, showing a 301 to Baidu. Anyone have any news or thoughts on this?