In the pandemic's bewildering early days, millions worldwide believed government officials who said they needed confidential data for new tech tools that could help stop coronavirus' spread. In return, governments got a firehose of individuals' private health details, photographs that captured their facial measurements and their home addresses. Now, from Beijing to Jerusalem to Hyderabad, India, and Perth, Australia, The Associated Press has found that authorities used these technologies and data to halt travel for activists and ordinary people, harass marginalized communities and link people's health information to other surveillance and law enforcement tools. In some cases, data was shared with spy agencies. China's ultra-strict zero-COVID policies recently ignited the sharpest public rebuke of the country's authoritarian leadership since ... 1989. Just as the balance between privacy and national security shifted after the Sept. 11 terrorist attacks, COVID-19 has given officials justification to embed tracking tools in society that have lasted long after lockdowns. What use will ultimately be made of the data collected and tools developed during the height of the pandemic remains an open question. Australia's intelligence agencies were caught "incidentally" collecting data from the national COVIDSafe app. In the U.S. ... the federal government took the opportunity to build out its surveillance toolkit, including two contracts in 2020 worth $24.9 million to the data mining and surveillance company Palantir Technologies Inc.