That right there is an unnamed US source quoted for plausible deniability, primarily for Russian consumption. The link is free to read at Drudge.
USA Sending Soviet Air Defense Systems...
The story is an example of US disinformation involving a shell game of transfers of maybe this, maybe that, maybe here, maybe there.
Happy to see it!
WASHINGTON—The U.S. is sending some of the Soviet-made air defense equipment it secretly acquired decades ago to bolster the Ukrainian military as it seeks to fend off Russian air and missile attacks, U.S. officials said. ... in 1994 ... a Soviet-made transport plane was observed at the Huntsville, Ala., airport within sight of a major highway. It was later disclosed that the plane was carrying an S-300 air defense system that the U.S. had acquired in Belarus ... The S-300—called the SA-10 by NATO—is a long-range, advanced air defense system intended to protect large areas over a much wider radius. ... At least some of what the U.S. sent was from that base, said officials, who added that C-17s recently flew to a nearby airfield at Huntsville. ... [SECDEF] Austin last week visited Slovakia to explore if the country would send an S-300 from its arsenal. Slovakia has said that it would do so if the U.S. would provide it with a replacement . . ..