主题：如今胡萝卜都不可靠了，要反复测试 -- 类反词典

Lots of users in China have been unable to search on Google.com.hk today. This blockage seems to have been triggered by a change on Google's part. In the last 24 hours "gs_rfai" started appearing in the URLs of Google searches globally as part of a search parameter, a string of characters that sends information about the query to Google so we can return the best result. Because this parameter contained the letters rfa the great firewall was associating these searches with Radio Free Asia, a service that has been inaccessible in China for a long time--hence the blockage. We are currently looking at how to resolve this issue.