Pentagon leaker Jack Teixeira is set to be sentenced Tuesday at a federal court after pleading guilty to leaking highly classified military documents related to the war in Ukraine. The 22-year-old Air National Guardsman from Massachusetts faces up to 17 years in prison. Prosecutors said that Teixeira's actions represent one of the most severe breaches of the Espionage Act in recent memory. Teixeira, who held security clearance, had sworn an oath to protect sensitive U.S. information vital to...