As a non-american, my picture of the american media started shattering with the Iraq war, and especially the events preceding it. It's only been down-hill since then.
See also this article on Judith Miller's stories from 2001-2002 (she was forced to resign from the NYT): https://nymag.com/nymetro/news/media/features/9226/
These aren't isolated incidents, but they were particularly egregious.
NYT also ran Joseph Wilson's oped explaining the yellowcake accusations against Iraq were likely fabricated.
I even remember this thing at the Scholastic Book Fair that was basically a book-magazine thing and contained a large fold out map and a list of all the int'l military divisions that would be participating in Operation Desert Storm; essentially armchair generalship marketed to kids.