Leaked Pentagon documents reveal national security risks and foreign interference.

American-made smart bombs sent to Ukraine are reportedly being jammed by Russia, causing them to miss their targets, according to leaked documents and a Defense Department official. The weapons have also experienced higher-than-expected dud rates and have failed to detonate due to a technical issue, which Ukrainian troops have since addressed. The leaked documents reveal Washington's concerns about Kyiv's dwindling ammunition and air defenses, which could cause it to fall short of its goals for the anticipated spring counteroffensive.