The Missile Defense Agency's testing program barely conducted half of its planned flight, ground and cybersecurity tests in 2021 -- extending a long-running pattern of under-executing assessments necessary to demonstrate new capabilities U.S. commanders depend on to protect the U.S. public, allies and armed forces from advanced missile threats. MDA, which annually receives about $1 billion for testing activities, executed 18 of 35 planned test events in 2021, or 51%, according to the Government Accountability Office’s annual report of the...