Is it safe to send kids back to school?

It might depend on the answer to these three questions.

https://www.technologyreview.com/2020/06/30/1004625/is-it-safe-to-send-kids-back-to-school/?truid=e6a9a97f971519b8818ba7420a6d576d&utm_source=the_download&utm_medium=email&utm_campaign=the_download.unpaid.engagement&utm_term=subs&utm_content=06-30-2020