I find no place where General Flynn urges anyone to sign a petition for martial law. AFAIK he presents that option but does not push it.
The global notable sends people to a suspicious site which collects names and contact info.
That Flynn global notable ought to be sauced or removed as disinformation.
I think that the three letter agency workers are being given the Russia story in untruthful intelligence briefings.
Maybe the agency that propagated the hypothetical false reports would be admitting to a crime if they told the DNI for the report that they knew China did it. After they briefed and leaked that Russia did it.