https://www.reuters.com/article/us-health-coronavirus-contract-tracing-m/u-s-lawmaker-says-any-covid-19-contact-tracing-tech-should-be-voluntary-and-limited-idUSKCN2243D8

Senator Edward Markey, a Democrat and online privacy advocate, said in a letter released Wednesday that any digital coronavirus contact tracing should be voluntary, transparent and collect only the information needed to identify who might be at risk of contracting the respiratory ailment that has killed more than 45,000 people in the United States.