P.M. Edition for Feb. 21. The Justice Department haslaunched a civil fraud investigation into UnitedHealth’s Medicare Advantage billing practices, sending its shares and broader U.S. stock indexes sliding. WSJ healthcare reporter Chistopher Weaver discusses what we know about the probe, its impact and where it could go next. Plus, the U.S. housing market logged another disappointing month in January. Reporter Nicole Friedman tells us what it would take to turn things around. And the Trump administration removes the acting director of ICE. Alex Ossola hosts.

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