They should start with Rand Waltzman's presentation at DEFCON (link above). In sum, USGOV is still totally unprepared for information warfare ops ongoing and intended.
About 1/2 through this video the content is the best I've ever watched from DEFCON, period.
There's a part where Rand says he was asked to provide questions for the congressional Facebook hearing. He said he was shocked when his questions were not used and instead "stupid" questions were asked. I'm not sure if he meant this sarcastically or not, but isn't it clear, especially to someone like Rand being an expert in disinformation and related areas, that the questions were likely deliberately not asked? I'm not sure why he was shocked.