geoff: special correspondent jeff greenfield. thanks as always for your insights. k you for being with us. jeff: nice to be here. geoff: and in the day's other headlines, federal authorities are warning of an unprecedented number of threats to law enforcement officials following the fbi's search of former president trump's mar-a-lago estate. in an unclassifiedoint intelligence bulletin, confirmed by “pbs news hour,” the fbi and department of homeland security say they have, quote, observed an increase in violent threats posted on social media against federal officials and facilities, including a threat to place a so-called dirty bomb in front of fbi headquarters, and issuing general calls for civil war and armed rebellion. it calls on officials to be vigilant. outside the u.s. capitol building early this morning, a man crashed his car into a barricade and died in an apparent suicide. our lisa desjardins was the first to report on the incident. capitol police say that as the man got out of his car, it was engulfed in flames. he then fired a gun into the air and shot