—”They claim alot.”
This is verified by Putin’s reaction to the downing of his “unstoppable missiles”
Russia detains hypersonic missile engineers for treason
https://www.yahoo.com/lifestyle/russia-detains-hypersonic-missile-engineers-171422543.html
From your link:
“Maslov was suspected of transferring data related to hypersonic technologies to China.”
Not Ukraine (or the CIA).