Thanks for this - the BBC reporting is very poor. Looks like this is a research study not routine screening. I'm all for identifying serious conditions early on but there are major issues with whole genome sequencing at a population level.
What if you find a autosomal dominant conditions like Huntington's - you've diagnosed a child with a life limiting condition without any genetic counselling or proper informed consent, and now know one of the parents is very likely to be affected too. It's not ethical to test for anything that's not relevant to the child - and any condition that may affect them in adulthood (and is untreatable) is arguably not relevant to their childhood and any testing can wait till they are over 16 & can have genetic counselling and decide if they want a test.
Many conditions involve multiple genes plus interactions with ones environment so all you can say from sequencing is that you are at higher risk of diabetes/eczema/bipolar disorder or whatever. It doesn't mean you'll definitely get that condition and there's nothing you can do to avoid it that you shouldn't be doing anyway (having a healthy diet, weight etc).
Plus there's many genetic changes of uncertain significance - unique polymorphisms that might be relevant to disease, might not be. How will they be interpreted?
It's a great idea to expand specific testing for serious treatable conditions with a clear genetic cause OR to do whole genome sequencing for someone with a rare, hard to diagnose condition of possible genetic origin but anything else is of very unclear public benefit. Even in those limited circumstances you'll throw up a load of very, very hard to interpret results.