The FBI is not investigating these upset parents. It is investigating threats and violence. Today we are facing what occurs on on the internet, non-local circulation of money and formation of conspiracies. Nothing is "local" anymore. For example, there is some some dust-up about the supposed teaching of "CRT" in Louden County, Va., schools, which should be a local issue, but people outside of Louden County are getting involved and interfering. Money and agitators are coming in from outside the county to fuel the fire.
The FBI has the ability to trace outsiders, track people throughout the United States, and uncover interstate conspiracies. I live in northern Virginia. In the days before Jan. 6 people were coming here from other states bringing weapons with them and stockpiling them in hotels in our neighborhoods! We didn't know that these vermin were gathering here.