A trio of Vladimir Putin’s leading hypersonic scientists have been detained on suspicion of high treason in what fellow scientists have declared a ‘witch hunt’ Aerodynamics specialist Dr Valery Zvegintsev, 78, is the latest of three prominent scientists from the Khristianovich Institute of Theoretical and Applied Mechanics in Novosibirsk to be arrested on extremely serious charges. Zvegintsev,... 

A leading Russian hypersonic missile expert has been detained on suspicion of high treason. Professor Alexander Shiplyuk, 55, was held in a swoop by the FSB counter-intelligence agency in Novosibirsk, Siberia where he heads the Institute of Theoretical and Applied Mechanics. The respected academic is the latest to be held in a wave of arrests of leading researchers on suspicion of handing secrets...