The accompanying graphic, captioned "$++ generation fighter Su-35S," has right margin cut off, which should be: "Crew 1, Max takeoff weight 34,500Kg, Maximum Speed mach 2.25, range 3600km, service ceiling 18km."
(b) I have no idea why Mr Andrei Chang singles out S Korea, whose most advanced jet fighter is F-15K (delivery starting in 2005), a variant of McDonnell Douglas F-15E Strike Eagle (introduction 1988). Both S Korea and Japan have fifth-generation jet fighters in development: KAI KF-X and Mitsubishi ATD-X, respectively. But one should not factor them in.