Allegedly, supposedly... About 60 years ago, Hunter Thompson called out these words as propaganda devices that let you say anything about anyone you don't like without taking any responsibility for it. Nothing has changed in the journalistic standards since then.
I don't agree those words let you say anything you like about something.
However, given the overwhelming consistency and volume of testimonies, supported by satellite imagery, investigations by international bodies and leaked internal documents, it's clear these types of acts do occur.