British government failure to impose a lockdown in the early days of the COVID-19 pandemic ranks among England’s worst public health blunders, lawmakers concluded Tuesday in the country’s first comprehensive report on the pandemic.The deadly delay led to thousands of unnecessary deaths and derived from the failure of government ministers to question the recommendations of scientific advisers, resulting in a dangerous level of “groupthink” that caused them to dismiss the more aggressive strategies adopted in East and Southeast Asia, the report said.