The Xi'an H-20 is a subsonic flying-wing stealth bomber with an estimated unrefueled range near 10,000 kilometers and a payload around 10 tons, nuclear weapons included. It would be a genuine addition to Chinese airpower. It would also be aimed at targets the PLA Rocket Force can already reach without risking a crew — the DF-26 alone ranges 4,000 kilometers and covers Guam, and the Pentagon counted 300 launchers and 550 missiles last year. Every…