Those who are completely dependent upon spelling checkers for making their documents correct should take heed. This story from the Scotsman tells of the problems and consequences of depending too much on your spelling checker.
The article recounts the story of the Scottish National Party and their recent mistake of using an American spelling checker mode when creating a document about the most important export product in Scotland, whisky. In the US and Ireland, it is Whiskey, but in Scotland, it is most definitely lacking in the 'e'.
This is yet another in a long series of problems caused by people thinking that if the squiggly little red line doesn't show up on your page, you have done the right thing.
There is two much dependents on machines proving documents. More though review polices our necessary or communication will continue to suffer.