1. This is a technology, says the UK Genetics Forum, which should be looked at from the point of view that if something goes wrong, it can't be put right. BNC
2. Far better to be tested today and have the chance to put right what is shown to be wrong than to be tested tomorrow and be found wanting. BNC
3. In rewriting, the spellings can be put right, and the finished piece of work is more likely to be accurate. BNC