I actually see the opposite, some of the search sites are not good enough so that it's easier to search their content on Google. This includes wikipedia if you don't know the exact term to search or the term is in the body.

I work in e-discovery technology related to all sorts of email formats, and I think there might be a lot left to be discovered.

With Exchange, when one hard-deletes (shift-delete or delete from "Deleted Items" folder) an email (plain delete is a soft-delete, which only moves the email to "Deleted Items" folder), the email is not __really__ deleted. It's put in the system dumpter/tombstone. Now the default retention policy of such messages on Exchange server is 7 days, so if they have weekly backup, it's pretty easy to dig out those deleted emails.

I guess now they should hire a e-discovery firm and if they have any email backup tapes, I am sure a lot more emails can be discovered.

I don't see that happens a lot, I don't know what you mean by native speaker. As the other post points out, it's hard to distinguish the chinese words when you take the tone out of the pronunciation. A guy with strong accent, which could twist both the tone and base sound, although a native speaker, can achieve the same effect. A lot of non-chinese, including my son, speaks chinese with a all-flat first-tone, then you do get a lot of misunderstandings.