In the 1950s, the epoch-making U-2 spyplane was young, promising, and still very, very secret.
Pentagon officials overseeing homeland counter-drone strategy told lawmakers that even with preliminary moves to bolster U.S. base defenses, the military still lacks the capability to comprehensively identify, track, and engage hostile drones like those that breached the airspace of Langley Air Force Base in Virginia for 17 days in December…