Joseph Allen runs a major public health research project at Harvard University, probing how indoor air quality affects human health and cognition. He consults with companies on ventilation and air filtration, and during the pandemic he became a prominent voice on public health, writing dozens of op-eds criticizing early guidance from health authorities and debunking misconceptions about how the virus spreads. But none of it would have happened if he hadn’t washed out as an FBI recruit.

The son of a New York City homicide detective who opened his own investigative agency, Allen spent his teens and 20s helping with the family business. He did surveillance, undercover work, computer forensics, and skiptrace—tracking down people who left town to avoid alimony. Eventually he took over the agency, leading investigations and supervising eight agents..... 

More at source: Science Magazine

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