A massive Liberty Loan parade in Philadelphia on September 28 drew large crowds and immediately preceded a severe local surge in Spanish influenza cases and deaths.
The parade is widely cited as a major catalyst for one of the deadliest municipal spikes of the 1918 pandemic during Wilson's presidency, overwhelming local hospitals and illustrating the domestic public-health crisis confronting the federal government.
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On June 16, 2026, the FBI announced it had successfully disrupted an alleged plot involving explosive-laden drones targeting a high-profile Ultimate Fighting Championship (UFC) event at the White House, an event notably associated with Donald Trump.
The FBI thwarted a planned attack on a UFC event hosted by Trump at the White House.
A gunman was killed after opening fire near the White House, prompting a security response.
A gunman was shot and killed by Secret Service agents after opening fire near the White House.