US-led Strike On Syria: Most Of Missiles Spent On Empty Target. OPCW Report Says No Chemical Weapons There
So, the Pentagon says that the Barzeh facility has recently (prior to the strike) been used by the Assad government to manufacture and research chlorine and sarin.
There is a problem. The Organisation for the Prohibition of Chemical Weapons (OPCW) conducted a round of inspections in Barzeh and found no chemical weapons there.
https://southfront.org/us-led-strike-on-syria-most-of-missiles-spent-on-empty-target-opcw-report-says-no-chemical-weapons-there/