We recently raised the issue of making sure phones are safe as people begin to return to work and school. The issue is relevant right now from a general safety and sanitation standpoint. We should all be diligent about keeping the actual surfaces of our devices as clean as possible. More generally, this need for health safety is also a good reason to reopen the question of radiation in mobile devices. It’s an issue that’s been discussed and debated for years now, but it’s good now and then to revisit the implications.