> In the 23andme case there was a worry that people might commit suicide or make massive life changes, if they discovered they had a potential terminal illness. Here, the 2x2 matrix of positive vs negative and true vs false, seems most dangerous on the false-positive side for people who believe it grants them freedom to do whatever they like. False negatives are dangerous for those who then feel certain they don’t have the disease currently and thus expose others unwittingly (but this is already likely!).

So you suggest it's better to not test people?