OPCW inspectors working with Syrian authorities found more than 70 undeclared Assad-era chemical weapons and sarin precursor materials at three sites in May 2026; 18 former regime officials have been arrested.

The CDC issued a Health Alert Network notice for a Bundibugyo Ebola outbreak exceeding 900 cases in DRC and Uganda, activated enhanced screening at Dulles and Atlanta airports, and American nationals in the region were evacuated to Kenya as the outbreak continues to grow without an approved species-specific vaccine.

Multiple workers were killed and at least ten injured when a white liquor tank imploded at the Nippon Dynawave mill in Longview, Washington on May 26; Governor Ferguson activated National Guard and traveled to the scene as the death toll remained undisclosed.

Governor Newsom requested a federal emergency declaration on May 26 for the GKN Aerospace MMA tank incident in Garden Grove, where about 16,000 residents remained displaced after the BLEVE risk was eliminated overnight.

A 21-year-old Maryland man with documented mental health history and prior Secret Service contact opened fire at the White House checkpoint on May 23 and was killed by officers; the incident is the third gunfire event near the president in under 30 days.

US and Iranian negotiators have agreed to a two-phase framework: Phase One reopens the Strait of Hormuz in exchange for lifting the US naval blockade, and Phase Two addresses Iran's nuclear program in a 60-day negotiating window; Iran says no deal is imminent and its domestic framing excludes nuclear commitments from Phase One.