False negatives 30%? Where do you get that from?
Anyway, you need context.
The 100,000 tests seem to be split.
Liverpool.jpg
New LFT Test (claimed to be 99.7% accurate) shows 80% fewer cases than standard PCR test (as used in Sedbergh and rest of UK)
So maybe this will help our decision makers get their act together, although I doubt it. They are too invested in the current track of lockdown until vaccine.