British Prime Minister Kier Starmer visits the White House where he and President Biden are expected to announce that they will allow Ukraine to use Western-provided weapons for long-range attacks into Russian territory. Israel is defending its strike on a U.N. school turned shelter in central Gaza and says that the six U.N. aid workers among the 18 killed were members of Hamas. North Korea shows off new centrifuges, raising questions about its nuclear capabilities and ambitions. A vaccine for Mpox passes a critical hurdle and a look at Chinese propaganda.