I've yet to find one either, and have wandered around quite a lot doing 'useful' stuff, which includes clearing the scavs then firing the power up and clearing out every data port and locker in the place (then removing my power regulator and powering it back down again)Smear Campaigns are indeed in the game, but they are rare. We'll have a discussion RE the rarity of them to see if we want to make any changes based on your feedback.
While we are having a good bleat... It would be nice if indicators of where to find some materials were given: titanium plating - what sort of industry would we find such in?
Even silly stuff like Weapon Inventory Data, might appear in one of the many arsenals / military bases? No, not yet! (I have collected mine, so only half-a-bleat)