Why contact tracing must be secure to be effective

Watch: A former George W. Bush policy director warns that crises like COVID-19 can bring tech-based solutions that violate public trust.

CBS News @CBSNews

A former George W. Bush policy director who coordinated tech after 9/11 warns that crises like COVID-19 can bring tech-based solutions that violate public trust. "It's very easy to put in place measures," John Ackerly tells CBS News. "It's very hard to then take them away later"