Both Reuters and AFP entitle their articles about chemical attacks in Syria in ways to plant the seeds, again, in readers' minds that Russia is the bad guy. Reuters: "Pentagon tells Russia not to tamper with alleged Aleppo attack site," as if Russia ever tampered with anything regarding any chemical attacks, alleged or not. AFP: "US warns Russia over Syrian site of alleged chemical attack." Did Reuters and AFP compare notes before publishing? It sure looks that way. Perhaps the CIA helped them in that.
Please notice the term "alleged" in both headlines. If you'll think back to when the West was accusing Syria of attacking people, the term alleged rarely, if ever, showed up in any headlines.