Governments have to decide whether to scrap their own COVID-19 contact tracing apps in favor of tech built by Apple and Google. Here's what's at stake. (GOOG, AAPL)

· Apple and Google are building contact tracing technology that uses Bluetooth in people's smartphones to track the spread of COVID-19 — and it's being embraced by a growing list of countries worldwide.
· A handful of European countries have announced they'll use tech from Apple and Google, but others like France, the UK,...