Some experts are worried that England’s rollout of rapid test kits for people without COVID-19 symptoms could backfire due to the limited accuracy of the technology—especially if government messaging is not clear. The UK government announced on Sunday that the lateral flow testing kits as piloted in Liverpool in the autumn would be available for people who can’t work from home, starting this week. Health Secretary Matt Hancock said that targeted asymptomatic testing and subsequent isolation is “highly effective in breaking chains of transmission.” The measure has been endorsed by public health officials and many scientists. The government says that it has identified kits with 70 percent sensitivity and that they’re designed to help reduce asymptomatic transmission, not to declare people as safe. However, some experts point to a study in the British Medical Journal that shows the pilot in Liverpool missed 60 percent of cases and 30 percent of …